I just bought an older laptop off ebay for an elderly friend. She wanted a laptop just for things like email, web surfing, and ancestry stuff. Didn't need anything fancy and didn't want to spend a lot.
Dell Latitude E5540 Laptop
15.6" Screen (1920 x 1080 max res), HDMI and VGA connections for external monitors
Intel Core i5 4th Gen, 2.60 GHz
8 GB RAM
500 GB HD
Windows 10 Pro
Built in microphone, web cam, WiFi
Qty 3 USB ports, 1 SD card slot
$308 delivered.
I'll decrapifiy it (remove the bloatware) for her and install standard software like AVG, VLC, MS Office 2007, Firefox, Chrome, Team Viewer... Prolly put on Classic Shell too since she's used to the Win 7 interface. Not sure what she has for a printer but if she wants another set up I'll get an inexpensive WiFi ink jet one for her.