The baptism records of the parish from 1730 - 1770 were then checked with no success in finding Anna Marie's birth, but Hans Friedrich was located. I do not have a copy of that record, again because it was too poor to copy, but the researcher did extract the data for me.
Dushorn Parish Baptism Register, p. 74.
Name of the Child: Hans Friedrich Elling
Date of Birth: 5th of March 1735 (No baptism date given.)
Name of the Father: Christ. Friedrich Elling
Name of the Mother: Cathrine Marg. Brecht
Godfathers: Hans Ripke from Ronhagen; Hans Heinrich Meiss from Fallingbostel; Cord Bleden from the Darbrugge at Walsrode.
More luck in that another generation back is revealed.
Also in the Baptism Register, two more children - siblings to Hans Joachim - were found. I have included the copy above, so if you enlarge it, you can follow along with the translation. :-)
Dushorn Parish Baptism Register, p. 76
Anno (Year) 1758
Name of the Child: Hans Friedrich (Jr.)
Date of Birth: 22nd of January 1758; baptized 24th of January 1758
Name of the Father: Hans Friedrich Elling
Name of the Mother: Anna Maria Helmken
Godfather: Hans Jacob Helmken
Anno 1760
Name of the Child: Ilse Marie Dorothee
Date of Birth: 23rd of April 1760, baptized 27th of April 1760
Name of the Father: Hans Friedrich Elling
Name of the Mother: Anna Marie Helmken
Godmothers: Ilse Marg. Helmkens from Tideln, Marie Elisabeth Anne Grothofs from Elfern, Anne Dorothee Jankens from Elfern.
From here on, research becomes trickier but not impossible. We can still go back further, but the documentation becomes sketchier. More on that next time!