When Sivert Martinus Johannesen Dybbugt was born on 20 January 1878, in Bremsnes, Averøy, Møre og Romsdal, Norway, his father, Johannes Larsen Dybbugt, was 32 and his mother, Randi Marie Samuelsen Myklebostad, was 31. He died on 15 August 1881, at the age of 3.
Swedish: from the personal name Sivert, a variant of Sigvard, which is a form of Old Norse Sigurthr, from sigr ‘victory’ + varthr ‘guardian’. In North America, this surname may also be a shortened form of a patronymic derived from this name (see Sivertson ).
Americanized form of German Sievert .