Hi What time frame are you researching ? When do you believe your Great Grandfather Joseph GILBERT - was born . When did he co to USA? Did he marry in USA or Canada.
Where were the children born? Is Joseph GILBERT still living . If Not - When did he pass away? Where ?
Joseph GILBERT - may have made application for Citizenship - have you searched - that will show personal information -may show place of birth - names of parents etc
REGISTRATON of MARRIAGE - long form marriage certificate - will show all personal information as required at the time - include names of parents and maiden name of mother
REGISTRATION of DEATH -Long Form Death Certificate - will show all personal information as known to the informant - names of parents including maiden name of mother etc Place of birth
USA Census. Canada Census -