Edmund C. Olson’s Legacy

Edmund C. Olson came to Hawaiʻi a self-made businessman and grew to love its people and land. Mr. Olson was a doer, who loved to work and support the people working alongside him. He never lost his drive to get business done, but grew into one of Hawaiʻi’s largest advocates for conservation and agriculture. 

He was the founder of many successful businesses, including Superior Gunite, A-American Self Storage, and O.K. Farms. His success in business allowed him to dedicate thousands of acres through The Trust for Public Land and give millions of dollars to improve lives and the environment. Mr. Olson cared about people and giving back to Hawaiʻi.

Edmund C. Olson Timeline


Ed was born in San Diego in 1931 and raised in Southern California by his single mother. He took an interest in cars, especially fast ones.

California Roots

Two black and white school pictures, from the 1940s, side by side of a teenage male with light skin and dark hair. In one photo he is wearing a graduation cap and gown. In the other he wears a light polo shirt.

After a stint in the Marines, Olson worked his way up as a construction worker to becoming a contractor and specialized in Gunite (spray concrete). In 1956, at age 25, Olson used $500 dollars to start the Superior Gunite Company, which sprayed concrete for flood control and road projects. The company also made around 34,000 swimming-pool shells across the Sun Belt.

Superior Gunite

Red and white semi-truck with large bold font reading "SUPERIOR GUNITE" on the side of the loads. The horizon of low mountains and urban buildings can be seen in the background.

In 1973, Olson founded A-American Self Storage, which became one of the nation’s largest self-storage companies. At the height of its existence, Mr. Olson rapidly grew the business and A-American had over 100 locations.  

A-American Self Storage


Starting in the 1980s, Mr. Olson started visiting Hawaiʻi frequently - first ʻOahu and then the outer islands. With the decline of the sugar industry in Hawaiʻi, he was able to acquire thousands of acres of agricultural land.

Coming to Hawaiʻi

Two men stand at the edge of Wailuku River bank in Hilo , Hawaiʻi. One is younger, has dark short hair wearing a green shirt and baseball cap. The other has white hair and a light colored aloha shirt on.


By the 2010s, Mr. Olson held over 15,000 acres of land in Hawaiʻi, mostly dedicated to agriculture. This included thousands of acres of macadamia nut orchards. In 2009 he purchased Hāmākua Macadamia Nut Company to process and sell the nuts. Then in 2012, Ka’ū Coffee Mill was built by Mr. Olson to provide Ka’ū coffee growers a place to process their coffee.  

Expansion in Agriculture

View looking down a grass road flanked by coffee and kukui nut trees, with ocean in the far distance and blue skies and large clouds above.

O.K. Farms was founded, in 2002, with a mission to perpetuate sustainable agriculture in Hawaiʻi. Ed Olson and Troy Keolanui partnered to fulfill their vision of a diverse tropical fruit farm that is a part of their community for generations to come. 

O.K. Farms

Two men, standing on an open grassy field, with a waterfall in the background. The light skinned man on the left has white hair and wears a collared jean shirt and light jacket.  The man on the right has light brown skin, wears a orange cap.

On July 15, 2024, Edmund C. Olson passed away in his Hilo home, at the age of 93. He is remembered as the Boss, a decisive Leader, Philanthropist, loving Husband, Father, Grandfather, Uncle and Friend. His estate is held by the Edmund C. Olson Trust No. 2, with the mission to support sustainable agriculture, protect natural resources, and invest in Hawaiʻi’s people. Mr. Olson wished that this work continue to be done through the creation of a charitable foundation.  

Leaving a Legacy

Foreground shows a hand holding memorial program reading "In celebration of the life of Edmund C. Olson" with photo of a man with white hair, wearing lei. Background is a lobby with tables, flowers, and photos at a memorial service.l.

Olson Trust Companies

Bunch of five green macadamia nuts (round with slight point) on branch of tree in orchard, background blurred


Hāmākua Macadamia Nut Company

100% Hawaiʻi-grown macadamia nuts all grown, harvested by hand, and roasted on Hawaiʻi island.

Hands, arms, and bill of cap are visible of coffee picker, pulling red cherry off of coffee tree with green and red fruit.


Kaʻū Coffee Mill

From farm-to-cup, coffee is grown, milled, roasted, and served in Kaʻū, on Hawaiʻi island.

Coffee field row with grass down middle and  blue skies, with fluffy white clouds above


Kaʻū Farms Management

Managing over 9,000 acres of agricultural lands in the district of Ka‘ū.

View from the air of West Oʻahu, with land meeting sea, and a thick layer of clouds over the land, blue skies above.


Pālehua Ranch

Stewarding over 2,000 acres of conservation and agricultural land, with historical and archeological sites, on the island of Oʻahu.