Hugh Marder - First Appearance, Appearances and Key Issues

First appearance: the evidence

Source	Claim
This record Cover	Detective Comics #10	2012-08

Related identities: Mr. Toxic.

Issue	Date
Who's Who: The Definitive Directory of the DC Universe #6	1985-08
Who's Who: The Definitive Directory of the DC Universe #16	1986-06
Who's Who: The Definitive Directory of the DC Universe #23	1987-01

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