"Sweden Baptisms, 1611-1920," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F2SJ-678 : 9 December 2014), Gustaf Filip Kilman in entry for Gustaf Harald Kilman, 13 Aug 1905; citing Östergötland, Sweden, reference bk 1; FHL microfilm 1,848,425.