In 1900 John, Della and children were living in Polk, Nodaway, MO. I think you already have this Census info.
Evidently John died after the 1900 Census and before the 1910 Census. Blanche and Emma either married or moved out of the house before the 1910 census.
In 1910 Della and Leslie were still living in Polk.
Della H. Inman, b. IA, 50 yrs old, widow, had three children & 3 alive in 1910, general farmer.
Leslie, son, b. NE, 19, single, farm laborer home farm.
I'd search for John's death info in Polk. If you don't know how to do this, post a message on the Missouri, Nodaway Co. Message Board.
In 1920 Della and Leslie were living in Pocatello Ward 4, Bannock Co., Idaho.
Della H. Inman, b. IA, 58, widow.
Leslie C., son, b. NE, 34, single, blacksmith helper steam railroad.
In 1930 Della and Leslie were still living in Pocatello.
Della H. Inman, b. IA, 65, marr @ 19, widow.
Leslie C., son, b. NE, 38, single, transfer t_____ express company.
A Leslie Inman b. 6 Feb. 1889, Last Residence=Pocatello, died Feb. 1973. He received retirement benefits from the Railroad Board. Source: Social Security Death Index, www.ancestry.com
In 1930 George and Blanch Swigart were living in Alpha, Valley Co., ID.
George Swigart, b. MO, 53, marr @ 31, sawyer logging camp.
Blanch, b. MO, 47, marr @ 25.
I didn't find George or Blanch in the Idaho Death Index but it only goes through 1951. Idaho restricts access to death info for 50 years after a death.
There is a volunteer at Random Acts Genealogical Kindness who does public records lookups and maybe she has a better source. Go to www.raogk.org
, read guidelines, choose Idaho, choose Valley Co.
Don't confuse this George with George W. Swigert who lived in Canyon Co., ID with his family.
An Edith Fisher b. 12 July 1886, Last Residence San Diego, 92102, died Jan. 1971. Her soc. sec. # was assigned in CA in 1963. Source: Social Security Death Index, www.ancestry.com
An Edith L. Fisher b.=unknown nativity, died=30 Jan 1971, San Diego. Source: California Death Index 1940-97, www.ancestry.com
To find an obituary, look up San Diego in RAOGK for a volunteer. Successful Searching!