John O'Brien was a merchant and political figure in New Brunswick

New Brunswick

New Brunswick is one of Canada's three Maritime provinces and is the only province in the federation that is constitutionally bilingual . The provincial capital is Fredericton and Saint John is the most populous city. Greater Moncton is the largest Census Metropolitan Area...

, Canada. He represented Northumberland County

Northumberland County, New Brunswick

Northumberland County , having the largest area of any county in the province, is located in northeastern New Brunswick, Canada.-Geography:Northumberland County is covered by thick forests, whose products stimulate the economy...

 in the Legislative Assembly of New Brunswick

Legislative Assembly of New Brunswick

The Legislative Assembly of New Brunswick is located in Fredericton. It was established de jure when the colony was created in 1784, but only came in to session in 1786 following the first elections in late 1785. Until 1891, it was the lower house in a bicameral legislature when its upper house...

 from 1890 to 1903 as a Liberal-Conservative.

He was born in Nelson, New Brunswick, the son of John O'Brien and Mary Alward, both Irish

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

immigrants, and was educated there. In 1890, he married Lillie McPeake. O'Brien was involved in the lumber trade. He served on the county council and was county warden. O'Brien also served as vice-president of the local Agricultural Society.