Background
Kostmayer was born in New York City, graduated from West Nottingham Academy in Colora, Maryland, in 1965, and received a Bachelor of Arts from Columbia University in New York City in 1971.
Kostmayer was born in New York City, graduated from West Nottingham Academy in Colora, Maryland, in 1965, and received a Bachelor of Arts from Columbia University in New York City in 1971.
Columbia University.
Kostmayer worked as a reporter from 1971 to 1972. He served as press secretary to Pennsylvania Attorney General J. Shane Cramer from 1972 to 1973 and deputy press secretary to Governor Milton Shapp from 1973 to 1976. After the retirement of Republican
Edward G. Biester, Junior. in 1976, Kostmayer ran against State Representative John South. Renninger for the open seat.
He lost in 1980 with Ronald Reagan sweeping to victory. Republican James Coyne narrowly defeated Kostmayer.
Kostmayer married Pamela J. Rosenberg, a mother of two, in 1982. He then enjoyed victories in 1986, 1988 and 1990.
Greenwood defeated Kostmayer with almost 52% of the vote.
Kostmayer became the Administrator, Region III (Philadelphia) of the Environmental Protection Agency from 1994 to 1995. Later, he served as the President of Zero Population Growth. He entered the race for Pennsylvania State Senate in 2002 against incumbent Senator Tommy Tomlinson.
Kostmayer was defeated, taking 47% in the general election.
Currently, he is the Chief Executive Officer of Citizens Committee for New York City.
With Jimmy Carter taking Pennsylvania in the 1976 election, Kostmayer won by a 1,300 vote margin. He won re-election in 1978 against G. Roger Bowers with 61% of the vote. Kostmayer won back the seat in a 1982 rematch by 2,300 votes. Kostmayer won re-election in 1984 over David Christian by fewer than 4,000 votes.
