We have twenty two male participants with a surname of Crum or variants of Crum. Haplogroups of these twenty two men include E, I, J and R. Participants who share a haplogroup with another member share a common ancestor somewhere back in time. Now it is up to these participants to share their genealogical research to see in which generation the common ancestor can be found and, thereby, increase their knowledge of their family tree. Known origins of the participants include the countries of Netherlands, Germany and Russia. Perhaps you can match with one of these participants?