Robert Sidney Sinker, 82, a pharmacist who at different times owned three drugstores in
the Washington area, including Glen Echo Pharmacy in Bethesda, died of metastatic
cancer March 19, 2007 at Sibley Memorial Hospital.
Mr. Sinker, who lived in Rockville, operated his pharmacy like a small-town shop,
greeting customers by name, offering delivery service and making flu shots available
twice a year, said Leonard Sinker, his twin brother.
He gave tremendous service, Leonard Sinker said. He wasn't concerned about the
chain stores because he knew his customers would keep coming back. He treated them
like they were visiting his home.
Robert S. Sinker was born in the District and grew up there and in several towns in Ohio.
He graduated from Central High School (1943) and served as a Navy medical
corpsman in the Pacific during World War II.
That experience motivated him to pursue a career as a pharmacist. He attended the
University of Tennessee and graduated from the University of Maryland School of
Mr. Sinker worked for neighborhood drugstores before opening Washington Circle
Drugs in 1965. He ran that store until 1984, Potomac Village Pharmacy from 1979 to
2003 and Glen Echo Pharmacy from 1994 until his death.
He was a Mason, a member of the Maryland Pharmaceutical Association, an usher and
volunteer at Washington Hebrew Congregation, and avid traveler.
Mr. Sinker and his wife visited Italy, Israel, Greece and Hawaii, among other places.
In addition to his brother, survivors include his wife of 55 years, Marie Sinker of
Rockville; three children, Laureen Sadowsky of Cherry Hill, N.J., Ronald Sinker of
Rockville and Abby Eshaghpour of New York; a sister; and five grandchildren.