McCombs held a number of positions within the Temperance Union throughout her life, including that of national treasurer.
In 1860 he was chosen president of the American Temperance Union.
Along with the Temperance Union, she was highly active in getting women to register as voters.
She was elected president of the Irish Women's Temperance Union in 1900 and 1912.
The church has a functional pump organ from 1879, which was originally purchased for the Temperance Union.
He was for a long period president of the American Temperance Union.
He later formed a backing band for his solo albums named The Temperance Union.
"As if we bothered to ask if a man screaming in pain was a regular churchgoer and subscribed to the Temperance Union!"
The combined troops of churchwomen and Temperance Union women - along with members of the women's suffrage movement - flooded petitions.
Her will bequeathed the house to the Temperance Union, which in 1900 moved its headquarters from Chicago to the house.