Wendelin Grimm was born October 18, 1818 in Kulsheim, Baden, Germany, to Valentine and Marie (Adelmann) Grimm. He grew up in a farm rich area of southern Germany, learning important crops and farming practices. In 1845, Grimm married Julianna Segner (born June 15, 1821) of Steinback, Baden, Germany. The Grimms chances to own a farm were limited by the land inheritance practices of the time. Farming and crop prices were under pressure, and their future in Germany looked grim. With a growing family to support, sons Frank and Joseph and daughter Ottilia, Wendelin and Julianna looked to America for their family's future.

In 1873, George Rodgers led immigrants from southwest England to establish the Yeovil Colony in the Red River Valley on land purchased from the Northern Pacific Railroad. Despite high hopes, the settlement of New Yeovil crumbled soon after it began.