I am currently researching six family groups; GUMMERMANN, EISERLO, MCCAUSLAND, DZIUBEK, BEIER, GADZINSKI.
My primary research is focused on the first three families, paternal grandfather, maternal grandmother and grandfather.
Variant spellings;
GUMMERMANN - GUMMERMAN - GUMERMAN
EISERLO - EISERLOH
MCAUSLAND - MCCAUSTLAND
DZIUBEK - JUBECK - DZIOBEK - DZUBECK
BEIER - BIER
GADZINSKI