That is so true about the infant/child mortality in the 18th and 19th centuries, I was reading up a lot on our earlier presidents and first ladies from that era, and the number of widowed presidents like Thomas Jefferson, wife died in childbirth and Martin Van Buren whose wife died young as well. Then ther was poor old Andrew Jackson whose wife, Rachel died three months brfore he was inaugerated.
Theodore Roosevelt's first wife died in childbirth on the same day as his mother.
And the childred who died so young
Abraham and Mary Todd Lincoln had four sons but Robert was the only one to reach adulthood.