Christoph Johann Jochime Friedrich Knaack from Mamerow married Sophie Dorothea Elisabeth Johanna Dreier on September 19, 1834 in the village of Klaber.

He was the son of deceased workman, Johann Jochim Knaack from Dersentin.

Sophia was the daughter of Johann Friedrich Dreier, a workman from Mamerow. She was born December 15, 1806 in Mamerow. Her mother was Christina Catharina Sophia Martz.
They had 5 children:
  1. Georg Christoph Heinrich Carl Johann Knaack - 1836
     
  2. Johann Wilhelm Friedrich Knaack - 1839
     
  3. Elisabeth Sophia Wilhelmine Friedrika Adolphina Knaack - 1841 - (Wife of August Heiden)
     
  4. Stillborn baby girl Knaack - 1845
     
  5. Helmuth August Friedrich Ludwig Heinrich Knaack- 1846 (he died in St. Petersburg, Russia on 10 Aug 1865)

Knaack - Knack - Kanak - Knaak - Rika (Mrs August) Heiden and her daughter-in-law, Anna (Mrs Ernst) Heiden had similar maiden names. Both have been recorded in different documents as having one of the four spellings above for their maiden name.

In researching Rika's background, the old German church records most frequently spell it Knaack. In America, we find the occasional Knaak or Kanack. Since Knaack appears to be the accepted German spelling, that is what we will use...for now.

Anna in her obituary is listed as Knaack also. However, tracing her back into Germany finds her father's name is Knack and her Social Security application has her maiden name as Knack. So, it would appear that it is the proper spelling of her name.