Involved with civic affairs upon his arrival in Edmonton, Bellamy would serve terms on the school board, and eventually city council, being first elected in 1895.

[2] Bellamy farmed with his family until 1881, when he moved west to Portage la Prairie, Manitoba, where he established an agricultural supply business.

He remained there until mid-1883, when he became an agent of an agricultural supply producer, A. Harris, Son, and Company, which prompted a move to Pilot Mound, Manitoba.

[2] He was transferred to Winnipeg in 1890, and lived there until he moved to Edmonton in 1892 where he selected a new office for the company, located on Howard and Jasper Avenue.

[9] He attempted to make a return to council in 1900, having been nominated by William Thomas Henry and Hedley C. Taylor,[10] but was ultimately defeated, placing seventh of eight candidates.

He next effort, in 1904, was more successful, as he placed fourth of seventeen candidates and became one of four aldermen elected to a two-year term on Edmonton's first city council.

[12] During the term, notably, council the issue of the firing of the city engineer, proposed by Alderman Robert Mays, who argued that he was "not onto his job".

[14] During the 1906 term, Bellamy also voted in favour of an annual Edmonton Exhibition,[15] the installation of a new incinerator for the city's waste,[16] and a contract for a new sewage company, Canadian White, Co. of Montreal.

[22] He also reaffirmed his previous support for municipal ownership, stating that it had helped Edmonton to become "one of the most advanced cities in Canada".

[23] His campaign was supported by the main city newspaper at the time, The Edmonton Bulletin, which stated their belief that the city was at a crucial developmental state which required many improvements to its facilities and utilities, and that "[Edmonton] needs the oldest seaman at the wheel", citing Bellamy's extensive experience in municipal affairs.

He would later resign halfway through his two-year term to contest the mayoral race in 1908 election, after John Alexander McDougall opted to retire.

[11] Bellamy took a hiatus from politics, but when James McKinley resigned his seat in 1911 to protest the firing of two city commissioners.

[36] Their son, Ralph Victor Bellamy was a Rhodes Scholar, the first ever in Alberta;[37] he would also go on to become a school board trustee and city councillor in Edmonton himself.

[36] Bellamy was also involved in the city's sporting scene, serving on a track committee playing on a curling team.

A 1912 publication, History of the province of Alberta, praised his business career and, describing him as "a man of distinct and forceful individuality, [and] of broad mentality and mature judgement".

[4] In 1906, he was described as "unwaveringly faithful to the trust committed to him, and during his tenure of the office he so acceptably fills, has given city affairs his most careful and serviceable attention.