Hi, Last year someone asked me to help in the research of her ancestors John Dean/Deau and Julia Manseau and again someone requested the same information.Below is what I found on this couple.I have all of Julia's ancestors in my Mandeau data base.I have nothing on the Dean/deau family.I hope that what I found below is of help to someone.Janet *** Ancestors of Julia Manseau Compiled by Janet Manseau Donaldson Use as a guide
Generation No. 1
1.Julia Manseau, born 25 Jun 1837 in Little Chute, Outagamie County, Wisconsin; died 06 Sep 1900.She was the daughter of 2. Antoine-aka-PetitToine Robidas-dit-Manseau and 3. Julie Crevier-dit-Descheneaux.She married (1) John Dean/Deau, (Jean-Antoine & Marie Mercier) 22 Jun 1854 in Peshawbetown, Leelanau, Michigan.He was born about 1830 in Unknown, Canada.
Notes for Julia Manseau: In 1880 Julia and John Dean and children were living on Chestnut Street in Nashua, NH. (Source: 1880 Federal Census.) Julia and John were living with her daughter Louise on Jackson Street in Nashua, NH in 1900.. (Source: 1900 Federal Census) ===== For more information about her siblings, go to the Michigan Genealogy Forum message 37273 at:http://genforum.genealogy.com/mi/messages/37273.htmlhttp://genforum.genealogy.com/mi/messages/37273.html
Notes for John Dean/Deau, (Jean-Antoine & Marie Mercier): 1870 - Michigan Census Name: John Dean Birth Year: abt 1825 Age in 1870: 45 Birthplace: Canada Home in 1870: Centerville, Leelanau, Michigan Race: White Gender: Male Post Office: Traverse
John Dean 45, Canada - farmer Julia Dean 33, WISC John A Dean 18, MI  Louisa Dean 13, MI Ellen Dean 11, MI Mary Dean 8, MI James Dean 5, MI Caroline Dean 3, MI Harriet Dean 1, MI ============== 1850, 1860 & 1870 census records do not show family relationships or parental birthplaces. Step children are not enumerated as “step” children Adopted children are not enumerated as “adopted” Grand children are not enumerated as “grand children” Orphaned children were not enumerated as "orphan"
About their son John A Dean in the 1870 census he is listed as being 18, and born in MI.That would be about 1852 depending when the census were taken and what month he was born.This would be before his parents got married.I believe that he may have been 16 at the time and there was poor communication between this French family and the census taker.One would need his birth records to prove this.
The State of Michigan did not require birth registration until 1867. Best bet would be to find a church record. From the names I would guess they were Catholic. I think that Ancestry has a collection for French Catholic Church records for Michigan. Think it is called the Drouin collection or something like that. Check with the archives of the diocese that covers the are where he was born or if there is a church that goes back to that time.