New York City ? Family members who are upset that details such as their loved ones’ ages will be left off the Sept. 11 memorial launched a television ad campaign Wednesday in protest and said they would not support private fundraising for the project.

The debate over how to list the names of the 2,979 people killed on Sept. 11 and in the 1993 trade center bombing is the latest and most divisive issue surrounding the memorial. Other disputes have centered on its cost, a design that once had the names of the dead listed underground and whether to build at the base of the towers where many victims’ remains were found.

Construction on the memorial began last spring. It is scheduled to open in 2009, while a museum is planned to open a year later.

Family members created a 60-second television advertisement that was to begin airing today on the NY1 cable channel.