This Beatles tune is a great one for the ukulele, especially once you hit those melodic bits!
View the full lesson at When I'm 64 (ukulele) | JustinGuitar
how do I get the ukulele chords for this?
Hello @aikidorobbins welcome to the Community.
They’re not available on the site currently. Follow the video and just write down a simple chord chart for yourself.
Cheers 
| Richard_close2u | JustinGuitar Official Guide & Moderator
Try here, it’s where I use:
https://ukuland.com/songs/167182-the-beatles-when-im-sixty-four.html
This is in the easiest key (A) from the point of view of which chords are used.
However it is better if you can get it from Justin’s video just in case it’s not in the same key.