- Serrell-Opdycke-Patrick papers /
- Series I. New York City Land Maps and Surveys /
- Block# 779 - #346 7th Ave. (bet. 29th and 30th Sts.) ; W. 28th St. (bet. 7th and 8th Aves).; 7th Ave. (bet. 29th and 30th Sts.) ; W. 29th-31st. Sts. (bet. 7th and 8th Aves)