date retrieval

I am using SQL SERVER REPORTING SERVICES 2008 R2. I am needing to retrieve a set of records from a database for any members who will be 70 1/2 years of age at any time during the current year. I need to get all members who have birth dates on or before 6-30 70 years prior to the current year. Ex. for a member whose birthday is 7-5-1943, I don't want to see that record returned. However, for a member whose birthday is 4-15-1943, I do want that record included in the returned data.

Any help would be greatly appreciated.