Haverford has an excellent collection of fine art photography, all of which can be seen in Special Collections. Much of it can also be viewed online (see below). Searching Tripod can lead you to further photographs.
The digital art catalog of the TriColleges, Triarte includes digital copies of many of the photographs held in Haverford's Special Collections (all of which can also be seen in person in Special Collections).
Haverford College master list of fine art photographs
The listing of prints in the collection is available in the Reference Room at Magill Library. Note that the supplement is arranged in four sections by the year the print was acquired.