Mitochondrial DNA (mtDNA) is the genetic material found in mitochondria. It is passed down from females to both sons and daughters, but sons do not pass down their mother’s mtDNA to their children.
Information in this source seems to address the research question all by itself.evidence speaks to the point in question.
[Sources & Evidence]
The 1850 census was the first census to give the name, sex, color, age, occupation and birthplace of each free member of the household.
To find a birth date from a death date, subtract the age in years, months and days from the date of death. This is a very close approximation.
City Directories provide names and occupations of town residents and much local business information.