Markham was elected to the Senate in 1926. Previously, he had been an alderman, City Attorney and Mayor of
Horicon, Wisconsin. During the
United States Senate elections, 1928, Markham was an
Independent candidate, losing to incumbent
Robert M. La Follette Jr. In 1936, he ran for the
Wisconsin Progressive Party nomination for Attorney General of Wisconsin, losing to
Orland Steen Loomis. He was then an unsuccessful candidate for
Dodge County, Wisconsin Judge in 1938. In 1948, Markham ran for the
Republican nomination for
Secretary of State of Wisconsin, losing to incumbent
Fred R. Zimmerman. ==References==