thor christensen (1793–1863) and anne taraldsdatter (1797–1867), who owned håkås nordre (then spelled haagaas nordre), were the parents of theodor christian haagaas (1823–1899), who was managing director of the sawmills of saugbrugsforeningen, norway's largest timber company. he married nora martha petersen, daughter of swedish-born johannes petersen (petterson), who owned veden manor, and was the father of the educator theodor haagaas (1873–1961), who founded the haagaas school in oslo, which was thus ultimately named for håkås. theodor christian haagaas was also the maternal grandfather of the publisher henrik groth. anne taraldsdatter was a descendant of the family which had owned the farm at least since the 16th century, and of the abovementioned aslach einersen; her father owned the large neighbouring farm bjørnstad while her mother was from håkås nordre.