In the middle of the 19th century, that church was the site of the first mixed race marriage in Canada.

It was originally Congregationalist, but joined the United Church when it was formed in 1925.

Sharon Moon began a seventeen-year tenure at the church, and made it a centre of social activism, especially gay rights, fighting poverty, and supporting people with addictions.

In 2007, the congregation sold their historic structure and moved to Westboro, joining with an Anglican Church of Canada congregation, All Saints Westboro (shared building, separate services).

The current Minister, the Reverend Brian Cornelius, continues the tradition of First United as one that welcomes diversity.