Question: In which year did first woman hired by the agency that operates the "Master Clock" become an American Astronomical Society member?
Sentence (from "United States Naval Observatory"): Located in Northwest Washington, D.C. at the Northwestern end of Embassy Row, it is one of the pre-1900 astronomical observatories located in an urban area; at the time of its construction, it was far from the light pollution thrown off by the (then-smaller) city center.
Relevant evidence: No