>>And snopes explained the Connecticut part.
Really? they did? <<
Yes, they did. Snopes.com apparently doesn’t enable one to cut and paste, but go to the site and search using the terms “Obama Connecticut Social Security Number” and read the first article (the one about his using an 1890 number). The last paragraph covers what I’ve tried to describe here. It could have easily been due to a simple typo or poor handwriting on a written form.