He moved to Canada in 1894, and worked as a general merchant and grain and lumber dealer.
[2] He first ran for the Manitoba legislature in the 1914 provincial election, and lost to Conservative Isaac Riley by fifty-nine votes in the constituency of Rockwood.
He ran again in the 1915 election, and defeated[1] Conservative candidate Thomas Scott by 636 votes.
The Liberals won this election, and Lobb served as a backbench supporter of Tobias Norris's administration for the next five years.
He ran for re-election in the 1920 provincial election, but lost to Farmer candidate William McKinnell[1] by a single vote.