How do I find user-deleted photos?

A tumblr user would upload cool photos mostly everyday.
Some people would like and reblog them.
Mostly ALL personal photos would be reblogged.

Well she deleted her Tumblr.

Her ORIGINAL photos are 'gone', but when people reblog them, they get re-uploaded to a different server so if the original content owner deletes their account then the photo will still be there on the reblogged account.

Typing in her username brings up some photos, but not all.
I'm not typing it in correctly.

URLs when reblogged look like this
user2.tumblr/post/35345/user1-whatever-she-posted-as-text-for-the-picture

User 2 reblogged it from user 1 - well user 1 deleted their account.

So how can I view their old photos?
Is there a scraper that can go on these accounts and scrap through every post and find 'reblogged from user1'?

If the blog is deleted then you have no access to it so you can't see any photo.
Finding the reblogged ones it's just a matter of pure luck and you will never find them all. Even the Tumblr staff can't find all reblogs of a specific one photo reblogged by many others.
Searching for old photos that belonged to deleted blogs and posting them as your own will get you some copyright claims and your blog will be deleted too (and your new blogs according to Tumblr TOS).

Tried archive.org?

Queue+ seems to work fine with deleted posts, but that only works if you queue all their posts before the blog is deleted.

You see an error message about the post being deleted or the URL changed, and it just shows the error message so you can't preview the post, but when it comes time the queue to post it everything shows up fine.

It used to be that you could copy entire blogs, queueing 3,000+ Posts at a time, but now you get error messages queueing more than 300 at a time. You could still "preserve" all of a really big blog's content, it'd just take a little longer.