The Postal Service is sponsoring a "Plant a Family Tree" campaign to help bind families together, but the program has nothing to do with agriculture.

Instead, the program encourages families to research and record their lineage on charts that are available free at post offices nationwide until the end of November.The charts offer suggestions on how to research family trees and where to get help.

Postmaster Dennis J. Yuhl said he hopes the program will encourage school children to learn about their grandparents and, if they are not living nearby, to write them a letter.

"In today's fast-paced culture, members of families are often separated by large distances, growing up with little knowledge of their own families," Yuhl said.