These were two separate denominations at the time, which would not formally merge for eighty years, but in Mukwonago they decided to form a joint congregation, chartering the town's Unitarian and Universalist church society in 1877.

[4] The following year the society started building its church right in the middle of Mukwonago, a block south of the main intersection and across the street from the homes of Andrews and Field.

They chose an unusual but practical model for their building, with a public meeting hall on the first floor and worship space above.

Some other early women ministers included Carrie Rice, Nellie Opdahl, and Florence Pollack, attesting to the congregation's liberal leaning for the time.

[5] The public hall downstairs hosted many other organizations, including the local Good Templars, the Women's Christian Temperance Union, the Territorial Badgers, the Modern Woodmen, the Royal Neighbors, the village's creamery company, the Farmer's Mutual Insurance Company, along with town meetings.