1880 IA CENSUS - William Cook(10y, b Wisconsin) enumerated with parents John (50y, b Wales, occupation farmer) and Elizabeth A. (51y, b New York), brother Peter (12y, b Wisconsin) and nice [of Elizabeth] N. Van Houten (11y, b Iowa)

MARRIAGE - W.L. Cook (23y, of Rockwell, Iowa; b Dodge Co, Wisc, son of John Cook & Elizabeth Van Houten) and Flora Mann (23y, of Swaledale, Iowa; b Boone co, Ill, daughter of James Mann & Agnes McCarkindale) md 1 Jan 1890, Cerro Gordo Co, Iowa

1900 WA CENSUS - William L. Cook (b Sept 1869, Wisconsin, married 10 eyars, occupation stock raiser) enumerated with wife Flora (b May 1867, Illinois, mother of 6 children, all living) and 6 children, John (b Sept 1891, Iowa), Elizabeth (b Mar 1893, Washington), Maggie M. (b Oct 1894, Washington), Flossie F. (b Aug 1896, Washington), Benjamin (b Jan 1898, Washington) and Willis (b Dec 1899, Washington)

1910 OR CENSUS - William L. Cook (40y, b Wisconsin, widowed) enumerated with 8 children, John W. (18y, b Wash), Agnes L. (17y, b Wash), Flossie (13y, b Wash), Benjamin (12y, b Wash), William (10y, b Wash), Leslie (7y, b Wash), Robert (5y, b Oregon) and Francis (4y, b Oregon)

1920 OR CENSUS - William L. Cook (50y, b Wisconsin, occupation stockman) enumerated with wife Adelia V. (45y, b Iowa) and 3 children, Willis (20y, b Wash), Leslie (17y, b Wash) and Francis (14y, b Oregon)

1930 OR CENSUS - William L. Cook (60y, b Iowa, widowed, married at age 20y, occupation farmer) enumerated with son Benjamin L. (32y, b Wash, married at age 30y, occupation farmer), daughter-in-law Edith (24y, b Wash, married at age 22y), grandson Glenn L. (0y, b Oregon) and son Glenn R. (25y, b Oregon)

1940 OR CENSUS William L. Cook (70y, b Wisconsin, widowed, occupation farmer) enumerated with son Willis A. (40y, b Wash, occupation farmer) and Ruth [wife of Willis] (41y, b Oklahoma); family was living in same house in 1935

OSBH DC (Crook County 1950) #2457 - William Lester Cook, male, farmer, widowed, b. 1869 in Wisconsin, d. 31 Mar 1950 in Prineviile, Oregon at the age of 81 years (lived in town 20 years), name of father John Cook, maiden name of mother Mary VanHoutem, interment Zena; informant Robert G. Cook.

Graveside services were held Monday afternoon at Zena, Oregon for William Lester Cook, who died March 31 at the Prineville General hospital. Burial was in the Zena cemetery. Services were also held last Sunday afternoon from the Prineville Funeral Home with Rev James Howard officiating. Mr Cook was born September 13, 1869, in Wisconsin. He has resided in Oregon since 1900, being a retired Central Oegon sheepman. He is survived by five sons: Jack and Glenn of Prineville, Willis of Klamath Falls, Ben of Bend, James of Shevlin, and two daughters, Mrs Ray Thompson of Mt Vernon and Mrs Lou Tullock of Waldport, 18 grandchildren and 21 great-grandchildren. 

Central Oregonian [Prineville], Thursday, April 6, 1950, 6:3

Father
William L. Cook
1859 - 1950

Janssen Compilation
Saucy Survey & Photographs

1880 IA CENSUS (Cerro Gordo Co, Bath, ED 47, FA#7)

Cerro Gordo Co, Iowa, Marriage Records (Ancestry.com)

1900 WA CENSUS (Asotin Co, Lake, ED 5, sheet 24A-B)

1910 OR CENSUS (Polk Co, Spring Valley, ED 252, sheet 3A)

1920 OR CENSUS (Lake Co, Fort Rock, ED 105, sheet 2A)

1930 OR CENSUS (Crook Co, Powell Butte, ED 18, sheet 4A)

1940 OR CENSUS (Crook Co, Pwell Butte, ED 7-14, sheet 7B)

Central Oregonian [Prineville], 6 Apr 1950, 6:3