1900 census, Braidentown, Manatee, Florida [Manatee] W W Parker 43 MD f MD m MD m 19 yrs contractor Sarah Parker 37 PA f PA m PA 7 ch 7 liv Lee Parker 18 MO house painter Ivey Parker 16 MO Guy Parker 14 MO Roy Parker 12 MO Benita Parker 10 MO Merriell Parker 6 MO (John Merriall, b Kankakee IL) Irvin Parker 3 IL (born Kankakee IL)
1910 census, Braden, Manatee, Florida Sarah E Parker 47 Benita A Parker 19 Merril Parker 16 /12  Friera Parker 12 Jean Hoxie 74 RI boarder
According to a tree on Ancestry.com, W W is William Washington Parker, and he was married to Sarah Emma McMillen (Feb 1857 Washington County PA - 1944 Bradenton FL). William and Sarah were married 6/15/1881 in Dorchester Cty MD.
Florida Death Index, 1877-1998 about Lee Edgar Parker Name: Lee Edgar Parker Death Date: 6 Apr 1978 County of Death: Manatee State of Death: Florida Age at Death: 95 Race: White Birth Date: 22 May 1882
name: Isa Pearl Parker prefix: suffix: event: Death event date: 19 May 1981 event place: Manatee, Florida, United States gender: Unknown age: 82 race: White estimated birth year: source file: FDI12.txt source file line number: 75036 source cd number: FDI12 certificate number: 46343 volume number:
I see lots of articles about the Parkers in early editions of Bradenton newspapers. Roy A was an electrical contractor. Merriell first went as head of the YMCA at the Colorado School of Mines, then he enlisted in the Marines in June 1917 and was stationed in CA. By 1915, WW is dead or divorced, and Sarah is referred to as Mrs. S. E. Parker. In 1915, Erwin and Merrial are off to college. In 1920, Sarah and Erwin travel to Reidsville, NC where Erwin is employed to be a teacher.
Sarah is Mrs. W. W. Parker in a 1906 article, so W W departed between 1906 and 1910.
Merrial was a student at UNC Chapel Hill in Dec 1913. He cabled his mother in Dec 1918, where he was in France with the Marines, that he was coming home soon.