Still not finding exactly what you want - if some cousin of yours answers perhaps you will hear family stories that way.
Find a Grave has memorials for the Minnehan family which you've probably seen - includes some nice short bios. I'll post some of the information here to fill out the context for the lives of Emmett and Jane Minnihan in case it helps someone find more for you.
Michael Minnihan b 1837 County Mayo Ireland - d 1912 Clallam County, Washington. Parents Dominic & Elizabeth Minnihan
Rachel Minerva Henderson (first married John Johnson, next married Michael Minnihan) b 1845 in Adams Co, Illinois - d 1932 Port Townsend, Jefferson, Washington. Parents Nathaniel C Henderson & Cornelia Ann Hooper