I am a docent at the Nevada Historical Society here in Reno.When I went up there today I looked up this family. I used the master index for the Territorial Enterprise newspaper in Virginia City, Nevada. It shows that George McCabe died at age 59 and was a native of Lowell, Mass.
Frances died in Carson and was aged 40 and born in Orian, Cateragus County, Pennsylvania.She had her funeral in Virginia City.
Lots of other references to the family but nothing showing them before they came to Virginia City except the mention of George being from Mass.
The Storey county recorders office in Virginia City has a neat website with genealogy information. www.storeycounty.org/recorder
You can reseach birth, death and marriage information.It is limited to the following: Marriages from 1862-1936 Volumes A thru E; births from 1887 to 1947 Volumes A,B, and E; and deaths from 1887 to 1904 Volumes A, B, and part of C.They have been indexed and imaged.
Not all of the images show up but you can get information from the index for lots of them.This is just a recent addition and it is AWESOME.
Go there and try the name: MCCABE.You will find some references to birth and marriges for that family in Nevada. Good luck in your search in Mass. for George and family.