[wideawake]

Lincoln’s father was mildly retarded.

Link, please.

Again, link please.

After Lincoln left home he never had anything further to do with his family.

Demonstrably false. In fact, before he left Springfield to be sworn in, he held up his travel by a couple of days to pay a visit to his stepmother, whom he called his "angel mother."

He visited her often and loved her dearly.

[BitBucket]

Demonstrably false. In fact, before he left Springfield to be sworn in, he held up his travel by a couple of days to pay a visit to his stepmother, whom he called his "angel mother."

That was his stepmother. His father he never saw again and did not attend his funeral.

[Ditto]

And as I recall, after he became successful in Springfield, he loaned his father a good sum of money.