Hi Marlene,
I would suggest you go to your local Family History Center (Mormans) and
order the microfilm for the Hamburg passengers list for the year of 1872.
This list gives the names of the villages the immigrants last lived in
Germany. Once you have the name of the village, order the church records for
the corresponding parish in Mecklenburg. And repost your message giving the
village name. I am sure you know how common a name Johan and Meyer is.
Good luck,
Cheryl