Hi
Here are a few helpers for you. It does look as they got married but when is the question. You'll have to go through the marriage book which ends 1949:
1912 - David Emmanuel Botvidsson: Norrköpings S:t Johannes AIIa:10 (1911-1917) Bild 3180 / sid 609 (AID: v177987.b3180.s609, NAD: SE/VALA/00272)
1931 - David Emmanuel Botvidsson: Norrköpings S:t Johannes AIIa:17 (1928-1931) Bild 290 / sid 321 (AID: v177994.b290.s321, NAD: SE/VALA/00272)
Maria Kristina died 11 Apr 1955 at Lövdalen in Norrköpings S:t Johannes.
David Botvidsson died 9 Sept 1962 at Lövdalen in Norrköpings S:t Johannes.
Ian