In the 1950s, Harry founded the Beatification Committee and the Holiday Bureau of the Chamber of Commerce to bring tourists to Laguna in the winter, and raised revenue by an innovation called bed taxes.
The next decade saw Harry founding the Civic League, dedicated to preserving the "Village Atmosphere," and helping reduce sign clutter, which resulted in one of California's toughest sign ordinances.
He was a founder and board member of Lyric Opera, which morphed into Opera Pacific; board member of the Festival of Arts; twice president of the Chamber of Commerce, which he helped resuscitate from its near-moribund state after World War II; he served as area district governor of Laguna's Rotary; and he was on Laguna's 1980 Committee, which forged the city's General Plan. He was very involved in fundraising for the construction of South Coast Hospital, the first one in South Orange County.