Lohmann/Lohman: North German: elaborated form of Loh. Loh: Topographic name for someone living by a wood or brushland, Middle Low German lo, loge, lage. (1)(1) Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
This is my husband's family so I haven't researched it as thoroughly as my own mother and father's.
