1855 - 1st appearance on the General Assembly roll of Sangamon Synod
1855 - Became part of newly formed Iowa Synod
1858 - Central Iowa Presbytery formed from
1867 - Oskaloosa Presbytery attached to
1880 - Dissolved at the Fall 1880 meeting of Iowa Synod. Part of it attached to West Iowa Presbytery. Without minutes cannot know for sure.
(Minutes of Iowa Synod from October 1879-Spring 1881 not included in manuscript volume)