He was a Swedish immigrant who came to the US in 1920. He worked for Walt Disney studios for quite a while. He did the artwork for Snow White and the Seven Dwarfs and Pinocchio. Rumour has it, he didn’t receive any credit for these two stories and was paid poorly by Disney.
He died in 1970.
- The Art Of Disney’s Gustaf Tenggren (buzzfeed.com)
- Is walt disney an entreprenuer (wiki.answers.com)