Joe and Bill are indeed correct that it is from the Great Chicago Fire. However, it isn't in the Chicago History Museum collection, and the Lincoln connection isn't who worshiped there. The Lincoln connection has to do with where the photo can be found.
Best
Rob
Abraham Lincoln is the only man, dead or alive, with whom I could have spent five years without one hour of boredom.
--Ida M. Tarbell
I want the respect of intelligent men, but I will choose for myself the intelligent.