Again, thanks to all who commented. I have confirmed, to my satisfaction, that the references that you provided are all indeed relating to the Floyd Baker Irish who I am researching.
Recently I discovered that he can be traced back to a John Irish who arrived in Plymouth Colony in 1629/30!! What fun!!
But, although I am convinced that he is the father of Nellie Marie Agnes (nee Irish) Guthoff, I ahve yet to find any documentation for her, i.e. birth record, adoption information etc. I believed that Floyd B. father her about late 1871 or early 1872 and that she was born in Pennsylvania and was perhaps adopted by the Guthoff's (or perhaps a Guthoff was her mother). At any rate she married Charles William Reen in Philadelphia 1890 and died in Detroit about 1948. I have the 1900 and later U.S. Census entries.
Any help with her birth, adoption or life in Phily will be appreciated.