Ada Township was first settled in the early 1880s. Originally part of Weston Township, which at the time covered two survey townships in Townships 129 and 130N, Range 61W.
Ada was organized around 1900 from the southern of the two townships and the northern one was renamed Kent Township.
The village of Silverleaf, built in 1887, is located 7 miles east of Ellendale, and was once the major population center in the township. The town reported around 25 residents in the late 1910s, and never seemed to exceed more than 50. It is little more than a ghost town today.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikipedia, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.