Johann Sahr Nipperwiese Prussia Circa Mid to Late 1700 S 1843

Hi all,

One of my brick walls - Johann Sahr born most likely in Nipperwiese, Kreis Greifenhagen, Pommern, Prussia or one of the surrounding villages. Not sure of birth year but am guessing sometime in the 1770's - early 1780's as his widow Charlotte Lübke/Lüpke Sahr who arrived in America in 1843 with her two sons was born abt. 1783-4. Son Martin Sahr having been born on April 30, 1810. Son Carl Friedrich Sahr (my ancestor) born on March 25, 1813. Am hoping to find his birthdate, parents, death date, etc.