Hedda Hammer married Alastair Morrison in Peking in 1946. Due to the increasingly unstable political situation in China, they left Peking soon after. The Morrisons spent six months in Hong Kong before moving to Sarawak in 1947, where Alastair was appointed to the British Colonial Service. During their 20 years in Sarawak, Hedda accompanied Alastair on all his official journeys but also made numerous tours of her own, photographing the cultures and environments of the indigenous and other ethnic peoples. In 1965 the Sarawak Government recognised Hedda Morrison's services to Sarawak through photography, by awarding her the Pegawai Bintang Sarawak (Officer of the Order of the Star of Sarawak), the equivalent of an Order of the British Empire or OBE.