Denise, I found some information I thought you might find of interest.I think that Margaret Arnold's maiden name is Janes, not Arnold.
I found the following in California Death Index.I had shown Ruth's birth as Abt 1892.
LANDER RUTH L 07/21/1892 Mother's Maiden Name JANES F Death Place ALAMEDA Residence ALBANY Albany 12/26/1963 Age 71 yrs
So I decided to look for a Margaret Janes b c1857 Iowa in 1880 Census.Didn't find anything.So I looked for a Margaret Arnold b c1857 Iowa and found following:
1880 United States Federal Census [Census Place Felix, Grundy, Iowa Family History Library Film 1254341 NA Film Number T9-0341 Page Number 420A] Chas. ARNOLD Self M Male W 23 Birthyear Cal 1857 VA Farmer VA VA Magie ARNOLD Wife M Female W 23 Birthyear Cal 1857 IA Keeping House IN TN Pearl ARNOLD Son S Male W 1 Birthyear Cal 1879 IA IA IN
Note that family was living in IA and Margaret's father was born in IN however shows mother born TN.
So I am inclined to think that Margaret married 1Arnold and 2Lander.
I realize that the following was written in History of the Lander Family of Virginia and Kentucky, EUGENE LANDER was born in Knoxville, Illinois, in 1838.He was a wayward youth and forsook his home in early life and became a wanderer in New Mexico, Arizona and California.In 1890 he married MARGARET ARNOLD, and died at Santa Rosa, California, leaving the widow and a daughter, RUTH. [000:I/p89]
I got the following message that gives Eugene's date of death.
Board: Message Boards > Localities > North America > United States > States > California > Counties > Sonoma URL: http://boards.ancestry.com/localities.northam.usa.states.california.counties.sonoma/5886.1http://boards.ancestry.com/localities.northam.usa.states.california.counties.sonoma/5886.1 /mb.ashx Subject: Re: Cemetery Lookup Please EUGENE LANDER died c1892, SANTA ROSA CA Author: jababe Date: Thursday, December 04, 2008 Classification: Query Surnames: I looked through the CD "Sonoma County Records, Vol 1" which had cemetery records, coroners records, etc. All I could find for LANDER was Eugene Lander died March 14, 1893, age 54, male, married, b. IL, lived in Santa Rosa, the source was County records Book 40, page 74. Maybe you could find an obituary for him that might mention where he was interred. Good Luck.