Carlton's star recruit Coulthard is believed to have started his football career at Carlton District Football League side, North Cartlon. Coulthard then played for junior league football for
Carlton Imperial in the
1874 season, where he remained in
1875 after the Imperials were elevated to
Senior status. He proved to be a match-winner for the Imperials with his goal-kicking, and in
1876 was recruited by Carlton, then a powerhouse of Victorian football. Starting off as one of Carlton's
followers, he was described by
The Footballer as a "rising and most promising player". Carlton topped the ladder that year and looked to win its fourth premiership in a row, but in a
de facto premiership playoff against archrivals
Melbourne, a controversial umpiring call secured the trophy for the latter club. The
Victorian Football Association (VFA) was established the following year, with Carlton as one of its twelve foundation member clubs. Despite switching between attacking and defensive positions during the
1877 VFA season, Coulthard still managed to rank equal-first on Carlton's goal-kicking tally with eight goals, and his elusive dashes with the ball in hand, fully 100 metres up the field at times, became a celebrated aspect of his game: Mid-season, Carlton pioneered
intercolonial football in Australia when it travelled north to
Sydney in
New South Wales to take on the Waratahs, a local
rugby club, in two matches: one under rugby rules, the other under Australian rules. As was expected, each club won the match played by its own rules, and Coulthard was appraised as one of two Carlton footballers who adapted best to rugby. The clubs met again in Melbourne, repeating the code switch. Carlton won playing Australian rules and claimed a 1–1 draw in the rugby match in defiance of the opposing team's umpire, who disputed their goal; the Waratahs eventually allowed it under protest in order for the game to continue. Coulthard stood out in both fixtures and briefly joined the Waratahs to play rugby. He quickly dominated at the sport, scoring all five goals and four
tries in his second and last game for the club. Although he appeared in only two of the Waratahs' twelve rugby matches in 1877, Coulthard scored more goals than any other member that season, and tied equal first in tries. Coulthard was remembered decades later for "[showing] the Rugby men how their game should be played".
Shark attack where the shark attack took place. Following the matches against Carlton, the Waratahs adopted Australian rules, and for a time, the colonial game threatened to become the dominant code in Sydney. During this period, Coulthard accepted an invitation to travel to Sydney to help foster Australian rules. On 15 September 1877, soon after his arrival, Coulthard joined several local footballers on a fishing trip in
Sydney Harbour. The group was anchored off
Shark Island when Coulthard, sitting on the boat's
gunwale with the back of his tailcoat hanging over the side, was pulled overboard by "a monster shark, 13 feet long". The shark had seized his coattails trailing on the water and dragged him beneath the surface "some ten or twelve feet" until it tore the coat from his body. After kicking at the shark, Coulthard swam to the surface alongside the boat, "into which he threw, with the aid of his friends, a kind of somersault, just about as quickly as he had been taken overboard." The incident was said to be "one of the most marvellous escapes from a fearful death on record" and "probably without parallel in Australian waters". The club denied rumours that it had lured its star player back with financial incentives, stating that Coulthard returned due to a falling out with his associates in Sydney. Nonetheless, the shark entered sporting folklore in the 20th century as the reason why Coulthard abandoned his plans in Sydney, which, as the story goes, kept Australian rules from becoming the city's most popular football code.
Champion of Victoria match: Victoria v. South Australia, 1879,
East Melbourne Cricket Ground. Back in Victoria, in the lead-up to the final match of 1877, against Melbourne, Carlton was already acknowledged as having won the premiership—its fifth such honour in seven years—based on the results of previous encounters between the two clubs that season. Coulthard was instrumental in maintaining Carlton's supremacy and was voted by
The Australasian in its end-of-season review as one of the VFA's best backline players. Carlton was considered the best side early on in the
1878 VFA season with Coulthard putting in best-on-ground efforts for the club. However, 1878 saw provincial
Geelong develop a dynasty that would dominate the competition well into the 1880s. Coulthard capped off the season with 18 goals, the most of any player that year, and was singled out for his prowess in the ruck. Coulthard was Carlton's best in its first match of the
1879 VFA season, a 4–0 win over
Albert Park in which he scored a goal after using an innovative dodging tactic that, according to one observer, left his opponents "standing looking on at the cool operation like a lot of demented geese". In July, in Melbourne,
Victoria defeated
South Australia in the first football contest between two colonies. Coulthard contributed two goals for Victoria in a best-on-ground display, and again led the way when his colony trounced South Australia in the return match a few days later. At the
Melbourne Cricket Ground (MCG) the following month, in the first club football match staged at night under electric lights, Carlton triumphed over Melbourne 3–0, two of the goals coming from Coulthard. He ended 1879 with a record 21 goals, seven more than the runner-up. At the conclusion of the season,
The Australasian declared: Coulthard kicked all five goals in the first game of the
1880 VFA season. Carlton was still undefeated in June when it recorded another victory, against Melbourne, in a
testimonial match for Coulthard, who complimented the occasion with a best-on-ground effort. In July, he officiated a match between Melbourne and South Australia's touring
Norwood Football Club in the now-traditional all-white umpiring uniform, and is thus recognised as football's first "
man in white". Later that month, in a major match against reigning premiers Geelong, Coulthard fainted after opponent George "Hercules" Watson felled and injured him behind play. He tried squaring up to Watson but was pulled back by a police constable and taken from the field to recover. The incident failed to stop Carlton from recording an upset victory, ending Geelong's 44 match winning streak. Coulthard finished on top of the goal-kicking ladder for the third consecutive season with 21 goals, and was again recognised as a champion of the colony. In July of the
1881 VFA season, Coulthard, attempting a
mark in front of Carlton's goal, was tackled by a Melbourne opponent and accidentally kicked behind the right ear. It left a wound that required immediate surgical treatment, forcing him to sit out the match. Coulthard was still suffering the effects of the injury one week later when he returned to the field to face Geelong. He struggled during Carlton's 1881 tour of
Adelaide, the local press stating that he was manned so persistently due to his footballing reputation that "he does not get the same chance of showing his sterling qualities". Although not up to his usual standard that year, Coulthard was still acknowledged as one of Victoria's best forwards, and secured 18 majors to finish second in the goal-kicking stakes.
Career-ending suspension Coulthard was serving as Carlton's vice-captain in
1882 when events conspired to end his VFA career. During a club training session in April, he clashed with teammate
Joey Tankard, a new recruit who subsequently returned to his original club of
Hotham. They reignited their feud in August when Carlton and Hotham met on the
East Melbourne Cricket Ground. With Carlton leading into the second half, Coulthard fell on Tankard in a scrimmage, either accidentally or on purpose "with both fists shut", depending on the eyewitness account. Upon rising, Tankard struck Coulthard in the face, who returned punches in kind and used "foul language" before other players broke up the fight. The crowd then
invaded the pitch and an eruption of mob violence seemed imminent until the police intervened.
The Sportsman called it "one of the most disgraceful affairs witnessed on a football field". Later in the match, Coulthard challenged Tankard to a fight in the pavilion, but he refused. Both players received a season-long suspension—the first punishment of its kind carried out by the association. After the verdict was handed down, Hotham secretary E. J. Lawrence accused Coulthard of insulting and threatening Tankard outside the meeting, and considered going to the police. The Coulthard-Tankard affair was seen as the culmination of a recent trend in the sport harking back to the violence and brutality of 1860s football.
The Argus supported the VFA, saying "it ought to be thanked and applauded by footballers, as it assuredly is by the public." While Hotham abided by the ruling, Carlton was heavily censured for refusing to enter the field in its next arranged match, against Melbourne, unless Coulthard was allowed to play. Melbourne would only accept their demand if Carlton "assumed the responsibility of defying the association". Carlton rejected the offer, and the match was abandoned. By this stage, Carlton was in talks to secede from the VFA, but later decided to play out the season. In a move that quickly turned public opinion against the VFA, Tankard's suspension was uplifted while Coulthard's remained in place.
The Australasian accused the VFA of basing its decision on "various jealousies and petty personal interests", and called for the governing body to be completely restructured. It was said that Coulthard's status as a lower class professional sportsman made him a convenient
scapegoat. Coulthard, despite missing five matches due to his suspension, ranked first for Carlton and fourth overall in the 1882 goal-kicking ladder, tallying 14 majors. He never played senior-level football again. ==Cricket==