Comic Title: Action Comics #340
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1966
On Sale Date: June 30, 1966 Newsstand Date June 30, 1966
Source: Direct Currents, Adventure Comics #347, Page 30

Copyright Date June 30, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly (semi-monthly, March)
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Supergirl Identity Hunt"
Pages: 10

Feature(s):
Supergirl (of Earth-1)

Writer: Leo Dorfman
Artist: Jim Mooney

Reprinted In:
Supergirl:The Silver Age Omnibus Vol. 2 HC (2018)

Feature Character(s)

• Supergirl (last appearance in Action Comics #339; next appearance in Superman's Pal, Jimmy Olsen #97)

Supporting Character(s)

• Dick Malverne (last appearance in Action Comics #336; next appearance in Action Comics #350)
• Miss Hart (last appearance in Action Comics #321; no further appearances)

Villain(s)

• Phillip Raines, the Fact Finder, and their men (no further appearances)

Guest Appearance(s)

• Superman (last appearance in Action Comics #340; next appearance in Superman's Pal, Jimmy Olsen #96)

Other Character(s)

• Susan Meadows, Dr. Small, Major Wood, Elaine Sterling, Sally King, Janice Tyler, and Ethel Harris (former residents of Midvale Orphange; no further appearances)
• Cindy and other orphan children (an astronaut; no further appearances)

Cameo Appearance(s)

• Streaky (on a charm bracelet)

Synopsis:
Linda Danvers attends a reunion at Midvale Orphanage. One of the former orphans Phillip Raines suspects one of the girls attending the reunion might be Supergirl. Working with a blackmailer known as the Fact Finder, Raines tries to expose Supergirl's secret. Linda catches on to the scheme before her identity can be revealed. She then arranges a trick with the help of Superman to fool the crooks and throw off their suspicions.