How do you find the new URL of a Tumblr that has moved?
My answer to How do you find the new URL of a Tumblr that has moved? on Quora
One trick that might work is to look up the old tumble in the Google cache or on archive.org, then copy and paste a unique search phrase from that page and run a Google search for:
“unique phrase found on page” site:tumblr.com
To hopefully find the new location of the tumblr.