I’ve since learned that large charitable donations such as these always get the 5th degree, so it’s best to get your receipts in order, and if you don’t have any, take a smaller amount on a deduction than you actually gave away...it’s just not worth the audit.
I had a woman who does household sales for a living handle the emptying of my Dad’s house. Whatever didn’t sell was donated. We were given a detailed list of what was donated, including the sale lady’s assessment of value. We gave it to the accountant handling the final estate income tax return. Everything I claim personally is itemized, with modest value claimed, and a receipt from the charitable organization. I hope we’re covered. Thanks for your comments.