I have found several of the children in Archion's collection (all records from "Norddeutschland: Landeskirchliches Archiv der Evang.-Luth. Kirche > Kirchenkreis Mecklenburg"). Below are the most relevant excerpts from the records, and their transcripts. As a general note, the spelling of the surname is hard to tell, as "o" and "a" appear very similar in this script. Lines/dashes in table seem to indicate repetition of the information above (I found this used extensively in confirmation records in this community).
There are some phrases, in particular with the godparents that I find hard to decipher, so any suggestions are appreciated.
It appears that the family moves from Blankenhagen to Völkshagen at some point, as indicated by the churchbooks. Both places are very close to each other, in a region east of Rostock.
Blankenhagen: Blankenhagen Taufen, Trauungen, Bestattungen 1787-1836, p28
Born Sep 26, 1831
Bapt. Sep 26, 1831
Father: Büdner [a special form of crofter specific to Mecklenburg] Johann Christian Heinrich Schroeder/Schraeder
Mother: Sophia Dorothea née Harder
Child: Maria Sophia Dorothea
Godparents:
1. Jgfr. [maid] Sophia Dorothea Harder, in Kösterbek
2. -- Maria Röpke --
3. Maria Dorothea B... g. [born] Ehlert, Blankenhag
Blankenhagen: Blankenhagen Taufen, Trauungen, Bestattungen 1787-1836, p28
Born Apr 5, 1833
Bapt. Apr 7, 1833
Father: Büdner Johann Christian Schroeder
Mother: Sophia Dorothea née Harder
Child: Sophia Maria Elisabeth
Godparents:
1. Sophia Reimer née Schroeder
2. Maria Anna Jenß Nebenfrau[?], Handels Jäger h ... [this line does not make sense to me yet]
3. Elisabeth Maria Martini née Rath, Volkshagen
Blankenhagen: Völkshagen Taufen, Trauungen, Bestattungen 1787-1836, p20
Born Sep 1, 1836
Bapt. Sep 4, 1836
Father: Einl. [prob. Einlieger, maybe "lodger"] Johann Heinrich Christian Schröder
Mother: Sophia Dorothea née Harder
Child: Dorothea Christine Elise
Godparents:
1. Sophia Dorothea Witt née Schumann, Völkshag
2. Distmädch? [guess] Christina Schumann --
3. G...? Elisabeth Schoening, Blankenhag
Blankenhagen: Taufen 1837-1894 p16
Born May 6, 1840
Bapt. May 10, 1840
Father: Einl. Johann Heinrich Christian Schröder, Völkshagen
Mother: Sophia Dorothea née Harder
Child: Johann Carl Heinrich
Godparents:
1. ...? Heinrich Harder, Kösterbek
2. ...? Carl Schröder, Hamburg
3. Einl. Johann Dunge, Völkshagen
Blankenhagen: Taufen 1837-1894 p29
Born Sep 24, 1843
Bapt. Oct 1, 1843
Father: Einl. Christian Johann Schröder, Völkshagen
Mother: Sophia Dorothea née Harder
Child: Johann Joachim Friederich
Godparents:
1. ...? Johann Kellermann, Völkshagen
2. Bdr. [prob. "Büdner"] Friederich Martienß, --
3. K...? Joachim Harder, Kösterbek
I could find neither the baptism record for Henry Schröder in 1852, nor confirmation records for the above children (which would have taken place in the 1840s). Looking around marriage and burial records, I did not encounter the names Schröder and Harder frequently. From these hints, I would guess two things:
- The family isn't originally from the area (the Harder godparents for example seem to reside in Kösterbek, which is close to Roggentin, also near Rostock).
- The family resides in a different place from the 1840s.