|U.S. House, Maine, District 1|
|High school||Shead High School (2000)|
|Bachelor's||Massachusetts Maritime Academy (2004)|
|Profession||First engineer on cruise ship|
Calder is a merchant mariner and marine engineer. He is a member of the Marine Engineer’s Beneficial Association (MEBA) and is currently employed as the First Engineer on the world’s only American-flagged cruise ship, the Pride of America operated by Norwegian Cruise Lines.
Calder is running in the 2012 election for the U.S. House, representing Maine's 1st District. Calder is seeking the nomination on the Republican ticket. Incumbent Chellie Pingree is running unopposed in the Democratic primary. Calder faces Jonathan Courtney in the Republican primary. The signature filing deadline for candidates wishing to run was March 15, 2012. The primary elections will be held on June 12, 2012.