Olmsted County Places - Viola
VIOLA is a railway village in the township bearing the same name, and was platted in September, 1878. Located 12 miles northeast of Rochester.
Sources:
MINNESOTA GEOGRAPHIC NAMES Their Origin and Historic Significance
by Warren Upham, Archaeologist of the Society
Published by the Minnesota Historical Society
Saint Paul, 19201940 Rochester City & Olmsted County, Minnesota Directory, published by Keiter Directory Co.