Excel XP

Column A has numbers which are repeated many times. Each number corresponds
to a family.

For example:

1234 Smith A
1235 Jones A
1234 Smith A
1236 Jones B
1234 Smith A
1235 Jones A
1234 Smith A
1236 Jones B

How can I extract each number listed only once (omitting duplicates) so I
have:

1234 Smith A
1235 Jones A
1236 Jones B

TIA

Guy