Seeking the final missing faces for the 9/11 memorial

The gallery has room for 3,000 5-by-7-inch portraits, arrayed in 250 columns and 12 rows. The 10 victims whose portraits are missing can be found in their alphabetical spots. Instead of a face, each is represented by a single leaf, green tinged with red, of a swamp white oak, the kind planted on the plaza, where the victims’ names are inscribed in panels around twin memorial pools.

The missing pictures the museum seeks are of Gregorio Manuel Chavez, 48; Kerene Gordon, 43; Michael William Lomax, 37; Wilfredo Mercado, 37; Mr. Ogletree, 49; Antonio Dorsey Pratt, 43; and Ching Ping Tung, 44. (Visitors to the gallery can pick out the other three by finding the oak leaves and accompanying names. Given their families’ wish for privacy, The Times is not identifying them.)

Four of the seven — Mr. Chavez, Ms. Gordon, Mr. Ogletree and Mr. Pratt — worked in food service, suggesting that they came from lower-income families whose public footprint may not be too large. And whether those killed were poor or rich, their survivors might well have moved away from New York. Addresses have grown out of date. Telephones have been disconnected. Trails have gone cold.