San Francisco 49ers - Wikipedia
1981 San Francisco 49ers season - Wikipedia
Roger Craig (American football) - Wikipedia
Michael Crabtree - Wikipedia
George Kittle - Wikipedia
John Lynch (American football) - Wikipedia
Marquise Goodwin - Wikipedia
Levi's Stadium - Wikipedia
Joe Perry (American football) - Wikipedia
Anthony Davis (offensive tackle, born 1989) - Wikipedia
San Francisco 49ers, American Football Wiki