Hagerman served from 1820-24 in the eighth parliament, from 1831-34 in the 11th parliament, from 1835-36 in the 12th parliament, and from 1836-40 in the 13th parliament.
Hagerman served from 1820-24 in the eighth parliament, but was defeated for re-election in 1824. He then returned from 1831-34 in the 11th parliament, from 1835-36 in the 12th parliament, and from 1836-40 in the 13th parliament.