The term “Free Church” is more descriptive of a position than a group. It refers to those who were in countries with a state sponsored church, and the free church was a church of a particular denomination but not under state sponsorship.
Mutch History of Premillennialism is a compilation of papers at a Second Coming Conference in 1885 at a camp meeting in Niagra Indiana. These paper present the thinking and verses supporting an imminent Second Coming in the air, premillennial coming of Christ. Download: Mutch History of Premillennialism