Thomas Moore Costello was a lawyer, judge and political figure in Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

. He represented Renfrew South

Renfrew South

Renfrew South was a federal and provincial electoral district represented in the Canadian House of Commons from 1867 to 1968, and in the Legislative Assembly of Ontario. It was located in the province of Ontario...

 in the Legislative Assembly of Ontario

Legislative Assembly of Ontario

The Legislative Assembly of Ontario , is the legislature of the Canadian province of Ontario, and is the second largest provincial legislature of Canada...

 from 1926 to 1929 as a Conservative

Progressive Conservative Party of Ontario

The Progressive Conservative Party of Ontario , is a right-of-centre political party in Ontario, Canada. The party was known for many years as "Ontario's natural governing party." It has ruled the province for 80 of the years since Confederation, including an uninterrupted run from 1943 to 1985...

 member.

He was born in Brudenell

Brudenell, Ontario

Brudenell, Ontario is a community in the township of Brudenell, Lyndoch and Raglan in Renfrew County, Ontario, Canada.-History:The history of Brudenell is most often presented as a "boom and bust" narrative in which the village experience a period of rapid-paced development, peaking in the 1880s,...

, Renfrew County

Renfrew County, Ontario

Renfrew is a county in the Canadian province of Ontario. In 2006, the population was 97,545 and county covered , giving a population density of . There are 17 official municipalities.-Government:...

, the son of James Costello and Rachel Craig, and was educated in Brudenell, in Renfrew

Renfrew, Ontario

Renfrew, Ontario, Canada, is a town on the Bonnechere River in Renfrew County. Located one hour west of Ottawa in Eastern Ontario, Renfrew is the third largest town in the county after Petawawa and Pembroke. The town is a small transportation hub connecting Ontario Highway 60 and Highway 132 with...

, at the University of Ottawa

University of Ottawa

The University of Ottawa is a bilingual, research-intensive, non-denominational, international university in Ottawa, Ontario. It is one of the oldest universities in Canada. It was originally established as the College of Bytown in 1848 by the Missionary Oblates of Mary Immaculate...

 and at Osgoode Hall

Osgoode Hall Law School

Osgoode Hall Law School is a Canadian law school, located in Toronto, Ontario, Canada and affiliated with York University. Named after the first Chief Justice of Ontario, William Osgoode, the law school was established by The Law Society of Upper Canada in 1889 and was the only accredited law...

. Costello was called to the Ontario bar in 1914. He married Mae McKay. Costello ran unsuccessfully for a seat in the Ontario assembly in 1923. He was named a judge for the Huron County

Huron County, Ontario

Huron County is a census division and county of the province of Ontario, Canada. It is located on the southeast shore of its namesake, Lake Huron, in the southwest part of the province...

court in 1931.