printed, vertical along left edge on mount: Warren Phot.; by unknown hand, vertical along lower right edge on mount, in graphite: FM. 4 (Old Chain - Battery Walk); on verso, by unknown hand, bottom right, inverted, in graphite: 0240 S
(Lee Gallery, Winchester, MA); NGA purchase, 2010.
- East of the Mississippi, New Orleans Museum of Art, New Orleans, 2017 - 2018, unnumbered catalogue.