Presumably you're using a mailmerge for this and have a data field named 'MEMBERSHIP CARD' in your data source. In that case all you need do is to
• insert a new paragraph into the label and format it as right-aligned with sufficient leading space to place it at the bottom of the label; then
• add the mergefield for the 'MEMBERSHIP CARD' field via the 'Insert Mergefield' button on the Ribbon's Mailings Tab.
Update the labels and you'll be right to go.

PS: Thread moved to mailmerge forum.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]