Parents were Peter Petersen and Claudine Wilhelmine Clemmensen (b abt 1816), Nyborg.
Sproglærer, Realskolebestyrer
Was living in København at the time of his marriage in 1882.
Birth record shows name change from Petersen to Blessing, 25 Jan 1904.
CENSUS 1906 (Aalestrup, Øster Bølle, Viborg S666)
3179 shows his birthdate and that he is a widower.
The Census also shows another teacher living at the school, Ida Blessing (b 3 Mar 1866) who may be his sister.
There are likely more children in this family between 1882 and 1892.