An Aquinas Institute (Rochester) graduate, at Princeton he was a history major, on the boxing team, business manager of the Nassau Sovereign, and president of Elm.
Upon graduation, as the fourth-generation Langie, he became executive vice president of the family fuel business. In 1969, he joined Lincoln Rochester Trust Co. as a vice president, retiring 20 years later from Chase Lincoln First Bank as vice chairman of the board.
Considered a pillar of the Rochester philanthropic community, Lou served on at least a dozen nonprofit boards, chairing many of them. In addition, he founded the Casting for Character fishing tournament, a fundraiser for the Seneca Waterways Chapter of the Boy Scouts.
An avid fisherman, Lou pursued many adventures with his wife, Sally, traveling throughout the world seeking unusual fishing experiences. He also enjoyed gardening and friendly competition on the handball and tennis courts. He and Sally loved their Bedlington terriers.
He is survived by his daughters, Roberta and Adele; and a granddaughter. Sally, his wife of 55 years, predeceased him.