In the 1900 census for Green Sulphur district (west side), Summers, West Virginia, Joseph Bleau, who has been married to wife Annie for 3 years, is shown with the following family: Household Gender Age HeadJoseph BleauMborn Jun 1852, Canada FR, borth parents born France SpouseAnnie B BleauFborn Dec.1868, Pennsylvania, both parents born Pennsylvania ChildFredrie A BleauMborn Sep 1881, West Virginia ChildErnest V BleauMborn July 1884 West Virginia ChildCarie R BleauFborn December 1887 West Virginia ChildBirtie B BleauFborn April 1891 West Virginia ChildMary V BleauFborn July 1894 West Virginia ChildMargaret BleauFborn July 1898 West Virginia ChildDaniel BleauM born November 1899 West Virginia All children show that their mother was born in West Virginia.This is not possible if Annie is their mother, as she was born in Pennsylvania.On the other hand, if Joseph and Annie have only been married for 3 years, only the youngest two children can belong to both of them. The 1900 census record is here: https://familysearch.org/pal:/MM9.3.1/TH-266-11871-64813-93?cc=1325221
West Virginia birth records show that Joseph had another wife before Annie.Virginia Alice Gwinn was the mother of his first five children, Fred A. Bleau, Ernest Vivian Bleau, Violet May Bleau, Daisy R. Bleau, and Mary V. Bleau.
The 1910 census shows the family living at Charleston, Kanawha, West Virginia.This time Joseph's birthplace is Paris, and Annie's is Canada.The older children have left the household, which then consisted of: HeadJoseph BleauM 57y SpouseAnnie B BleauF 41y ChildMargret BleauF 11y ChildDaniel BleauM 10y ChildRuth J BleauF 9y ChildMary M BleauF 7y ChildEdith L BleauF 5y ChildTeddy BleauM 3y ChildJosephine A BleauF 1y Step-daughterNellie BeasleyF 18y The 1910 census information is here: https://familysearch.org/pal:/MM9.1.1/MPN6-MMN
For the 1920 census ofKanawha, West Virginia, I almost hesitate to say it is the same family, because the parents' birth places have changed, but the children are the same, with some younger additions: Household Gender Age HeadJoseph BleauM 63y born Pennsylvania?, parents born New York? SpouseAnnabel BleauF 51y born New York?, parents born Pennsylvania? ChildMary BleauF 16y ChildEdith BleauF 14y ChildAed BleauM 12y ChildJosephine BleauF 10y ChildPaul BleauM 6y ChildWilliam BleauM 3y11m Children were born in West Virginia.The census record is here: https://familysearch.org/pal:/MM9.1.1/MN2T-S45
None of this gives you Joseph's parents, but it should give a fuller idea of his family.