Career
He represented Carleton in the Legislative Assembly of Ontario as a Conservative member from 1907 to 1919. He was born in Richmond, Canada West, the son of Henry McElroy, and educated in Richmond and at the Ottawa Collegiate Institute. McElroy owned a general store, operated a flour mill and was a grain dealer.
He served as reeve for Richmond from 1897 to 1903.
McElroy was first elected to the provincial assembly in a 1907 by-election held after the death of George Nelson Kidd. He also served as a director for the Central Canada Exhibition.
McElroy was named registrar for Carleton County in 1919. He died of pneumonia at his home in Ottawa in 1920.
