After the war, Crawford was prominent in preserving the Gettysburg Battlefield and at one point attempted to raise money to cover the hill with a large memorial building and museum dedicated to his division.
Efter krigen gjorde Crawford en stor indsats for at bevare slagmarken ved Gettysburg og forsøgte på et vist tidspunkt at skaffe penge til at dække bakken med en stor mindebygning og museum, som skulle erindre om hans division.