(1947, IA-77-07) in Des Moines, Polk County, IA. 42nd St. N. 0.3 miles from jct with I235 exit 6 in Des Moines, W. on Kingman Blvd. 0.4 miles (4 blocks), N. on Polk Blvd. 250’ to the house on the W. side of the road at 1056 Polk Blvd. (N41 35.835 W93 40.922) Photo 4-29-04.