Oscar Rondahl’s mother, Grace Coe, was a half sister of Queen Emma. His father was Capt. J.M. Rondahl. He was born at Kabakaul, New Britain, in 1905, and took over family plantations in New Britain, including:
• Rainau Plantation, purchased from Mrs Schmidt in 1937;
• Kap Kap (Birara “B” & Kab Kab “C”), part also purchased from Mrs Schmidt in 1937; part purchased from Graham Mirfield; part purchased from Oscar Rondahl’s sisters, Ricka and Tilly; part inherited;
• Kabakaul Plantation, property formed into a private company, known as Rondahl Limited, after the death of Oscar Rondahl’s brother; all shares in the company purchased by Oscar Rondahl in 1937;
• Makurapau Plantation, transferred to Oscar Rondahl under a deed of gift from his father in 1927;
• Induna Plantation, purchased by Oscar Rondahl as virgin land from J.J. Gilmore in 1931.

Virginia Adam is a great niece of Oscar Rondahl.

Vital records of Oscar Rondahl and family, 1918-1991
Plantation titles, etc., 1935-1969
Papers on the Estate of A.J. Eilertz, 1949
Paper on August Y. Chang of Metlik Plantation, New Ireland, 1949
Trip files of Oscar Rondahl, 1969, 1974 & 1978
Correspondence, 1942-1988
Press cuttings, maps and photographs.
See Finding aids for details.