I believe I found it. When I did a search on Matilda Pigeon on ancestry.com, I found her listed in a Milwaukee City Directory as the widow of Frank. Try to go to this link -
http://search.ancestry.com/iexec?htx=View&dbid=1540&...; Fox Point; River Hills; St Francis; Shorewood; West Milwaukee; Whitefish Bay%26_81004041=1940&rc=1195,2097,1270,2117;1283,2097,1368,2116;1225,2555,1327,2572;1889,2335,1979,2355;2726,2722,2849,2738;4099,1699,4219,1718;2883,3494,3122,3523&pid=7519992&ssrc=&fn=Matilda&ln=Pigeon&st=g.
Not sure if Frank came from the Green Bay area or not.