It looked like you changed the birth and death dates on Hannah Eastman-618 when you added the source lines. You backed out the sources but not the dates that were changed. From the Changes Log, if you go to the 1st entry where you 'Edited the Data', you can select that 'change', then you can select the line that has 'restore data from as it was ....' It will then bring up 3 columns of each section that was changed, so you can select each option, add a comment in the block with the reason and then select the Restore Selected Data, so it will restore the biography section completely.
Don't worry about adding incorrect information and links. We have all done things like this, just make sure to back out everything.
It looks like you removed the spouse and child. Looks like Hannah (Eastman-2636) Bradford may need to be added to Myron Bradford-7121 profile as his mother. There is a problem with that profile because there is already a Miriam Bradford-6622 that is son of Hosea Bradford that was born on Sep 14 1824, slightly different name than Myron. They either have to have same dates for twins or one of them is in the wrong family.