Final answer:
According to the information provided, there is no evidence or mention of White being a gang member.
Step-by-step explanation:
The characterization of White as a gang member, according to Hagan, is inaccurate.
In the context of the provided information, there is no mention of White being involved in any gang. The information mainly focuses on the activities of the Ku Klux Klan and their persecution of Black people, Republicans, and people they considered carpetbaggers.
Therefore, the characterization of White as a gang member is unfounded.