- Serrell-Opdycke-Patrick papers /
- Series I. New York City Land Maps and Surveys /
- Block# 1058 - #412, #432 W. 49th St. (bet. 9th and 10th Aves).; #435 W. 48th St. (bet. 9th and 10th Aves).; northeast corner of 10th Ave. and W. 48th St.; W. 48th St. (bet. 9th and 10th Aves)