Thanks for the helpful responses.
I contributed 7,500 in total to our HSA's for 2019, 6,500 in my account and 1,000 in my wife's. That was based on the pro-rating of the max contribution.
We had HDHP coverage from March-December of 2019 and then January-June 2020 for my wife and January-October for myself.
We both registered for Medicare in advance of our 65th birthdays and started our coverage (and cancelled the HDHP coverage) on the first day of the month of our birthdays.
