William Holmes Cookman

From 1187 to 1890, he was listed in the Philadelphia city directories as a salesman or an artist, then from 1891 to 1893 as a draftsman. From 1894 through 1930 he was listed as an architect and by 1901 he began working for the Pennsylvania Railroad. He became a member of the Philadelphia Chapter of the American Institute of Architects in 1912. Cookman was a member of the American Railway Engineering Association, and served on the Association's Standing Committee VI. Buildings in 1914.

• Chester Transit Center, 6th & Welsh Streets, Chester, Pennsylvania, 1903 • Pennsylvania Railroad Station, Dover, Delaware, 1911 • Greensburg Station, Harrison Avenue and Seton Hill Drive, Greensburg, Pennsylvania,1912 • Pennsylvania Railroad North Philadelphia Station, Philadelphia (remodel, 1912) • Cumberland Valley Railroad station and office building, Chambersburg, Pennsylvania • Pennsylvania Railroad Edmondson Station, Edmondson Avenue at North Bentalou Street, Baltimore, Maryland • Pennsylvania Railroad Chelten Avenue Station, Chelten Avenue and Pulaski Street, Philadelphia, Pennsylvania,1918, demolished and replaced 1958 • Pennsylvania Railroad Station, Mayville, New York, 1925 • Pennsylvania Railroad South Philadelphia Perishable Products Terminal Building, Oregon and South Delaware Avenues, South Philadelphia, Pennsylvania, 1928

• Illustration — Pennsylvania Railroad station (SEPTA), Chester, Pennsylvania • Illustration — Pennsylvania Railroad station, Dover, Delaware • Illustration — Pennsylvania Railroad station, Greensburg, Pennsylvania • Illustration — Pennsylvania Railroad station, Mayville, New York • Illustration — Pennsylvania Railroad Station, Edmondson Avenue, Baltimore, Maryland