Keira Scout Camp; the garden landscaped surroundings of the Southern Portland Cement Ltd's cement plant, near Berrima; and a Remembrance Drive of memorial tree plantings along the Old Hume Highway south of Berrima. In 1939, by now doing significant work in the Southern Highlands and Illawarra areas, he set up a second nursery at Berrima, which operated until 1944. At "Mahratta" in Wahroonga, he redesigned and renovated his earlier garden to suit a new art deco style mansion built there for Thomas Alfred (T.A.) Field, a wealthy grazier and meat merchant, in 1941. Also in the 1940s, he created a cool climate garden for "The Braes" at Leura. Sorensen became friendly with Lady Gowrie, wife of the Earl of Gowrie, Governor-General of Australia, and he assisted in the creation of a small garden at "Yarralumla" (Government House, Canberra), in memory of the Gowries' son, Patrick, who died on active service during the Second World War. Two of Sorensen's own sons died in the war and Cecil Hoskins invited Sorensen to erect a memorial to them in the grounds of the Hoskins Memorial Church at Lithgow; he created a simple memorial, using natural rock. After the war, he constructed mainly smaller gardens, for country properties—including "Bethune" near Orange—and for houses in the Blue Mountains and on the Upper North Shore in Sydney. He returned to "Everglades"—from 1962 a National Trust of Australia (NSW) property—and expanded the garden. and to "Mahratta", where he renovated the garden for its new owners—Bank of New South Wales—in 1964. He did work at the country estate of the Field family, Lanyon Homestead, in the A.C.T. Also in the A.C.T. he carried out tree surgery that saved some very old cedar trees at "Yarralumla". In the late 1960s, he also returned to "Invergowrie" and restored and extended the garden for its new owners. He also designed and constructed new gardens for "Mereworth House" at Berrima, in 1965, and "Fernhill" at Mulgoa in 1969. Such large commissions became rarer; the era of grand residences with extensive parkland gardens was largely over by the 1960s. Sorensen kept working until his death in 1983, with his younger son and grandson doing the heavier work. Personal life and death On 27 November 1919, Sorensen married Anna Ernestena Hillenberg. They had three sons, two of whom—Derrick and Neville—died during their service in the Second World War. Sorensen died on 12 September 1983,