WAILUKU, Maui — Johnny Baldwin's roots ran deep into Maui's missionary past, but when he reached out — most often quietly and behind the scenes — it was with a spirit of giving.

Baldwin, a fifth-generation descendant of the Rev. Dr. Dwight Baldwin and great-grandson of Henry Perrine Baldwin and grandson of Frank F. Baldwin, died Wednesday at The Queen's Medical Center in Honolulu. He had been struggling with lung cancer. He was 71.

"He was a really low-key, behind-the-scenes kind of guy. He didn't like publicity," said longtime friend Fred Bush, who had been friends with Baldwin since they were 4 years old. "If 10 percent of the people on Maui had a clue how much money he personally has given to the community ... they would be absolutely amazed at the number."

Among the many organizations to receive support from Baldwin were Seabury Hall, Doris Todd Memorial Christian School, the Maui Arts & Cultural Center, the Maui Family YMCA and the Hui No'eau Visual Arts Center, Bush said.

Baldwin was responsible for the restoration of the hui's Kaluanui building in 1996, and he played a major role in purchasing the hui's property in Makawao a few years ago from Maui Land & Pineapple Co., said Hui No'eau board president John Hoxie.

"It's safe to say that without the support of Johnny Baldwin and others, but Johnny Baldwin in particular, Maui would not have the hui," he said.

Writer Laurel Murphy, who has been researching a book about the Baldwin family, interviewed Johnny Baldwin as part of her project.

"He was a wonderful interview," she said, adding that he was modest, kind and unassuming. "He wore the mantle of being a Baldwin lightly."

His home, in Olinda near Seabury Hall, is called Elua Palms and is "one of the great houses of Maui," Murphy said.

"It was falling to pieces, and he presided over the restoration of it," she said.

Baldwin also owned numerous commercial properties in Makawao on Baldwin Avenue, including the Matsui Building.

Murphy said Baldwin was adamant about preserving historic buildings on Maui.

Baldwin was born April 13, 1938, at Paia Hospital. He was the son of Asa Baldwin, manager of Hawaiian Commercial & Sugar Co. His mother was Virginia "Tootie" Castle, a descendant of another prominent missionary family in Hawai'i. She was the daughter of Harold K.L. Castle, who was descended from one of the founders of Castle & Cooke. The Maui Arts & Cultural Center's main 1,200-seat theater is named after Harold Castle because Baldwin was among the first contributors to the building of the venue for movies and live performances.

"I'm really, really sorry to lose Johnny," said Karen Fischer, president and chief executive of the Maui Arts & Cultural Center. "He was a unique individual and a Maui original. As I told our board, he had a huge heart and a rascal soul. He was a very decent person."

Baldwin had been a longtime member of the board of directors of the cultural center.

Mary C. "Maizie" Sanford, Baldwin's cousin and former Maui News publisher, said she saw him at a fundraiser for Montessori School a couple of months ago.

"He told me he had cancer, but he looked pretty good," she said. "He was always shy and very pleasant, not like some of the other Baldwins. He liked to do things with his hands.

"His death is a great loss for Maui," she said.

Kelvin Taketa, president and chief executive of the Hawaii Community Foundation, said Baldwin's loss will be felt statewide, as he was trustee for two major foundations — the Fred Baldwin Memorial Foundation and the Harold K.L. Castle Foundation.

Both foundations have been major contributors to a variety of causes statewide, he said, adding that those included public and private schools, and marine conservation projects.

Baldwin also was president of the Samuel N. and Mary Castle Foundation.

"He helped so many organizations and causes in Hawai'i," Taketa said. But "he never wanted the attention and the limelight."

As a businessman, Baldwin founded Haleakala Storage and Transfer Co., which later became Kahului Trucking Co., according to his son Jeremy Baldwin. He also ran a charter fishing business, taking tourists out for sport fishing trips.

Baldwin also was a member of a band, playing banjo for the Turpentine Cats.

Longtime friend Bush, also in the band as a guitar player, said the group met regularly and played a wide range of music, including folk, country western, light rock and golden oldies.

On Thursday night, the band members got together and played without their banjo player.

"By golly, we got together and played anyway because he would have wanted us to," Bush said. "Nobody was in tears. Nobody was sad. ... While his chair was empty, his banjo was there. Everybody felt he was there."

Baldwin is survived by his wife, Debby; three sons, Jeremy Baldwin, Dr. Kittredge Baldwin and Thomas Baldwin; a brother, Michael Baldwin; and seven grandchildren. Funeral arrangements were pending.