There is a FindAGrave memorial for a Blanche M. Fourhman Myers, b. Nov. 8, 1907; d. Jul. 27, 2002, Shrewsbury, Pennsylvania, burried at Friedensaal Lutheran Church Cemetery, Seven Valleys, York County, :
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=myers&GSfn=Blanche&GSmn=m&GSby=1907&GSbyrel=in&GSdy=2002&GSdyrel=in&GSst=40&GScnty=2307&GScntry=4&GSob=n&GRid=40286602&df=all&
I suspect the memorial is for "your" Blanche. The info mentions her deceased (1989) husband Guy W. Myers. The biographical info there gives the names of her parents. You will have to determine which is the correct (or currently accepted) spelling of her last name. Sometimes the spelling of surnames in a family line do change over time. Or, census takers or others (not the individuals themselves) filling out forms unintentionally misspell surnames. Or, the name is accidently misspelled in transcription.
It looks like the biographical info on FindAGrave was taken from a newspaper or maybe a funeral home death notice. The source is not cited. You would need to contact the person who established the FindAGrave memorial and ask.
Also, someone posting on the Genealogy forum for those researching people with the surname Myers has a message about the obituary of Blanche M. Fourhman Myers:
http://genforum.genealogy.com/myers/messages/6683.html
You will need to register (free) on Genealogy.com to reply to the message so the poster can reply to you.
Or, you can post a "newspaper obituary look-up" request in the Rootsweb.com message board for York Co., Penn. I believe I have seen your messages about Blanche posted there. The death notice referred to in the Genforum Myers surname message board was printed in the July 28, 2002 issue of the Hanover (Pennsylvania) Sun newspaper (now apparently called the Evening Sun newspaper.)
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Best wishes