!BIRTH Parish Register, Tvilum, Skanderborg, Danmark, 1836-1864 (LDS microfilm #52237), also Marriage Record to Frederik Bertelsen, Parish Register, Thorning, Viborg, Danmark 1871-1892 (LDS microfilm #434797); corroborated by age at time of Feb. 1880 census (28) and age at births of her children.
Census 1860 Horn By, Tvilum, Gjern, Skanderborg lists her age as 9 (Dansk Rigsarkiv, Dansk Demografisk Database).
!DEATH Parish Register, Thorning, Lysgård, Viborg, Danmark 1907-1934 p 226, Dansk Rigsarkiv,
Arkivalieronline.dk.
Her marriage record indicates she came from Ungstrup.
Moved from Tvilum to Thorning in 1863 with her father and family (1911 Census data).