Otto F. or Edwin H. Pofahl, Faribault, MN

I'm looking for information on my Grandfather Otto F. Pofahl and his ancestry.He was born Jan. 8, 1894.My Grandmother Janet Marie Keldsen was born in Mitchel County, Iowa July 12, 1901 to Jens and Hannah Keldsen.They were married on June 16, 1920 at Lyle MN.I believe Lyle is in Mower County, MN.The newspaper wedding announcement states they would return to their home in Faribault after a short honeymoon and the Marriage Cirtificate indicates they were from Rice County, MN.My Father Harold Lowell Pofahl was bornAugust 13, 1921 in Faribault and on his Cirtificate of Baptism Edwin H. Pofahl is listed as one of the Sponsors.I don't know what his relationship is to my Grandfather.They moved to CA after only a couple of years and were divorced in spring of 1926.Otto died in Auburn, CA Oct. 14, 1973.In the MN S.S. Death index I found an Edwin H. Pofahl born Nov. 21, 1890 in MN, a Herman A. Pofahl born Jan. 17, 1877 out of state, and a William F. Pofahl born April 6, 1886 in MN.They all died in Rice County, MN and all have the mother's maiden name listed as Bartelt.If this is the same Edwin H. Pofahl as the one at my Dad's Baptism, he's most likely a cousin or brother of my Grandfather?? I'd really appreciate any info. anyone might have.