I just came across this site and am intrigued by your entry, now three years old. I am Walter Harbeson's nephew, and thus Alice Knoderer's nephew. I had not known Alice's maiden name. Note that its Harbeson with an "e", not an "i." The birth date for Walter Harbeson is right, because his brother, my father, Robert, was 14 years his junior. The Mansfield connection is correct--it's the same Walter Harbeson. Willis and Ida Rissler Harbeson were my grandparents. So I guess we are distantly related by marriage.
One of my puzzles is how the "i" and "e" Harb(e,i)sons are connected if at all.