Searching Academic Search Premier and Criminal Justice Abstracts (John Jay login required) with the keywords 'Policewomen AND New York Police Department" is recommended. Below is an RSS feed of the results of this search
History of Women in the NYPD - From the Policewomen's Endowment Association, includes a timeline.
Keynote Remarks at the 2015 Women in Policing Conference: “Women in the NYPD: Hear Them Roar” Mary Jo White, includes several links
NYPD CELEBRATES WOMEN IN POLICING (press release April 15, 2009)
Daily News (2/22/2017) Historic changes at NYPD as two women lead a Bureau for first time
NBC "Prime Suspects" slide show - A Brief History of Women in the NYPD" [not all of the images appear to match the captions]
WomenPolice - is published by the International Association of Women Police (IAWP). Previous titles were PoliceWoman and IAWP Bulletin. Periodicals - HV8023 .I2
Barack, L. (1928) Ziele und Aufgaben der weiblichen Polizei in Deutschland Special Collections (open stacks) - HV 8023 .B3 - this volume has several images of early NYPD and London Metropolitan Policewomen as well as those from other police forces.
Hamilton, M. (1971). The policewoman, her service and ideals. Reprint of the 1924 ed. (Police in America). New York: Arno Press & The New York Times. Stacks - HV8023 .H3 1971
Sullivan, M. (1938) My double life. (1983 reprint) Stacks - HV7911 .S84 A3 1983