About
Small Dads is a photoshop meme in which a family photo is edited to have the father shrunk to half his original size.
Origin
On February 7th, 2013, Redditor afdlips submitted a post[1] declaring his newest hobby was shrinking the fathers in various family photos, providing an Imgur album of some of his photoshops (shown below). Within 12 days, the post received over 26,500 up votes and 880 comments.
Spread
On February 8th, Gawker[2] published an article about the photoshop meme, featuring several notable examples from the series.