Theodore Heuck (1830 - 1877) was an architect, a merchant, and a painter. He designed The Queen's Medical Center (dedicated to Queen Emma), the Royal Mausoleum of Hawaii in 1865, and ʻIolani Barracks in 1871.
He was born in Hamburg, Germany and grew up as an only child. Traveling from Australia, Heuck arrived in Hawaii January 20, 1850 and advertised as the first professional architect. Finding no business, he became a partner with Herman Von Halt in a retail store, "General Commission Merchants". He became a citizen of the Kingdom of Hawaii and married Mahiki on March 22, 1852 Nuuanu Falls Date 1855