Olmsted County Places - Pleasant Grove Township
PLEASANT GROVE township, organized May 11, 1858, and its village, platted in 1854, derived their name "from a beautiful grove of oaks, where the little village is located."
Source:
MINNESOTA GEOGRAPHIC NAMES Their Origin and Historic Significance
by Warren Upham, Archaeologist of the Society
Published by the Minnesota Historical Society
Saint Paul, 1920