Secory was a
National League (NL) umpire from 1952 to 1970, and worked in the
World Series in
1957,
1959,
1964 and
1969, serving as crew chief in 1964. He also officiated in the
All-Star Game in 1955, 1958, 1961 (second game), 1964, 1967 and 1970. He was the second base umpire on May 26, 1959, when
Harvey Haddix of the
Pittsburgh Pirates pitched a
perfect game for 12 innings before allowing a baserunner and losing in the 13th; he was again at second base on June 21, 1964 for
Philadelphia Phillies pitcher
Jim Bunning's perfect game, the first official regular-season perfect game since 1922. On August 24, 1960, Secory's 48th birthday, while he was umpiring a game at the
Los Angeles Coliseum,
Los Angeles Dodgers sportscaster
Vin Scully unexpectedly invited fans listening to the game radio broadcast at the stadium to yell, "Happy Birthday, Frank!" on the count of three, which startled Secory. In all, Secory umpired in nine official
no-hitters in his career, which set an NL record for umpires and was then one short of the major league record held by
Silk O'Loughlin. Secory tied
Bob Emslie's NL record of eight no-hitters on May 1, 1969, when he worked second base in
Don Wilson's 4–0 gem; after
Augie Donatelli also tied the record later that year, Secory broke it by working in his ninth no-hitter on June 12, 1970, officiating at first base in
Dock Ellis' 2–0 win. After Secory's retirement, Donatelli tied his record in 1972, and
Tom Gorman tied it in 1976 before
Paul Pryor broke it upon working in his 10th no-hitter in 1978. Secory was also behind the plate on May 26, 1956, when three
Cincinnati Reds pitchers held the
Milwaukee Braves hitless for nine innings before losing in the 10th, being the first time in major league history where multiple pitchers combined to throw nine innings without allowing a hit. He was again at second base for the second game of a doubleheader at
Shea Stadium on May 31, 1964, between the
New York Mets and the
San Francisco Giants, when the two teams battled for 23 innings before the Giants won 8–6, setting a record for the longest game ever at 7 hours 23 minutes. ==Personal life==