A counterpart to the aforementioned Texans carrying a blck flag is this description of Massachesetts regiments with one.
Richard

SUGAR PLANTER [WEST BATON ROUGE, LA], November 23, 1861, p. 2, c. 1

The Black Flag.—The Lynchburg Virginian is informed "the Massachusetts regiments parade weekly through the streets of Baltimore, carrying the 'Star Spangled Banner' and the 'exterminating flag'—a black flag with a skull and cross bones!"