Received 20 Old Membership Records

[lajackson]

I've got two membership records in my system for the same person.

I would figure out which record is correct, and then follow the instructions in the link russellHltn provided to remove the other record.

[sbradshaw]

If their membership numbers and birthdates are different, it's possible you have two different people with the same name. Did you check other things, such as their baptismal date?