I'd suggest you post the link to your family tree:
when you post an inquiry.It might help prevent the answer you received when it appears you know something about genealogy. As I did below, I see this posting is not current.
You have most of the below in your family tree, I needed to review it, so I posted it for archives.
The 1880 Census for Tualatin, Clackamas Co, OR
David Haynes, 56, born in Georgia to father born in North Carolina, mother in Kentucky
Elizabeth, 50, born in GA to father born in NC, mother in GA
Even with the error in age in the below census, Fannie/Georgia should be on this census.But, with known errors in the census, she could have been missed by the enumerator, or the person providing the information.She might be right there, known as "George," misunderstood by the enumerator, or George could have had a twin, also missed.OR, this is the wrong family.
--Following the Haynes, was a Dayton Bussey, female age 19, and daughter Minnie B.Your posting mentions a Mary Lou Bussey, but their relationship aren't fully identified in your paragraph (It is more of an argument with yourself on your findings, try to give facts as readers don't have your knowledge of the family).
The 1900 Census for Tule Lake, Klamath County, OR
Fannie Hayes, born Sept 1875 in Texas to father born in North Carolina, mother in Alabama. Cook.Single.
George A. Purdy, born June 1876 in Nebraska to both parents born in Ohio. Farm Laborer.
---This does not appear to be Walter...
---This Fannie does appear to be the correct person.
The 1910 Census for Tule Lake, Klamath County, Oregon, enumerated 9&10 May
Walter Purdy, age 32(1877/1878), born in California, birth location of parents is blank.Confectioner/Candy Kitchen
Fannie, age 38(1871/1872), born in Texas to father born in North Carolina, mother in Georgia.
Ruth G, 5(1904/1905), born in Oregon
The 1920 Census for Merrill, Klamath Co., Oregon.Enumerated 27-29 January.
Walter L. Purdy, hired hand, age 43, born in CA to father born in US, mother in Wisconsin.Farm laborer/farm
Georgia, 40(1879/1880), born in Texas to father born in North Carolina, mother in Georgia
Ruth, 15, born in OR
Owen, 12, born in OR.
--From these two census,Ruth aged 10 years between the Census.Owen only aged 9 years.So, it "appears" that Owen was born between 29 January and 9 May of 1907.Fannie, on the other hand, only aged two years and became Georgia.
The 1930 Census for Ashland, Jackson County, Oregon, enumerated April 10.
Walter L Purdy, age 51, born in Texas to father born in England, mother in Germany, Janitor/Bank.First married age 21 (1899/1900)
Fannie G, age 56(1873/1874), born in Texas to father born in North Carolina, mother in Georgia.First marriage age 26(1899/1900...BUT, the 1910 census showed she was 38 at that time).
Ruth G, age 24.Born in Oregon.She only aged 9 since the 1930 Census, so her age doesn't match formula either.
Walter died in 1943, buried in Mountain View Cemetery, Ashland, Jackson Co.
Georgia F. A. Purdy, 1953:
The Oregon Archives charge for research.Since you don't know the marriage date or even place... http://arcweb.sos.state.or.us/reference.htmlhttp://arcweb.sos.state.or.us/reference.html
For your research, I won't bother looking for the marriage record.Most marriage certificates don't have the name of the parents.PLUS, with the available records, you don't know even what County, or if in the State of Oregon.
I would recommend starting your search in 1953.
a.Start with the Cemetery.See what records they have.Even if they identify just a funeral home that will identify where she died.You indicated Benton County, but buried with Walter in Jackson County.
b.Benton County.Was she living with daughter?Get a volunteer there
http://www.raogk.org/oregon.htmhttp://www.raogk.org/oregon.htmHave Lisa do the obit check.Also, if she would, a check of the City Directories to see if Fannie/Georgia is listed.If so, see who owned the property, it might be the daughter.Also death certificate/information.If they have a county Registrar, they approve the Death Certificate and approve burial or transfer permits.At County Court, look for probate record, it might list children.
c.Jackson County.Public Records Courthouse, burial permits.Also death information on Walter.Also look for a probate record.
Keep looking for those "current" records at end of life.THEN go back in time.OR, if you find any information on the children, go forward.