The Willowers

What we know about The Willowers comes from Kat and Samson. They only appear in Aftermath: Survivors with them being entirely killed off at the hands of Samson at the end of that section of the story. The early history of the Willowers (that can be assumed by the stories told by Cutup and Bard) is one of an elderly woman who, due to The Flash, was widowed. This woman, known by 2039 as 'Grandma Willow' was a 60-70 year old woman who started the concept of Natural Willowism, a cult-like religion practiced by the Willowers. We learn that soon the residence of her town who survived soon joined her band. Join dates that we know are: Widower joined her soon after The Flash, 2032 or early 2033, Cutup joined with Bard in mid 2033, and Kat joined in 2036.

What we know about their combat capabilities is displayed during the attack on the superconstruct and Battle for the Hollow. They mostly used clubs, bows, and spears. However some used bolt-action weaponry (by description most likely SMLE Lee Einfield Mk IV). Despite outnumbering Samson 50:1 (approx.) they still lost the battle due to his having the element of surprise as well as superior weaponry and training. The fate of the Hanging Willow is unknown, perhaps it was spared, perhaps it was razed. Though given Samson's lighting a torch and his unbridled temper, it is more likely the latter.

The Inner Workings of the Willowers
The Willowers worked in a theocratic tribalist society with feudal influences. The hierarchy went like this

Grandmother Willow-Supreme (political and religious) Leader of the tribe

Warpath Leader-Second only to Grandmother Willow in authority, at the time of Survivors Cutup was the Warpath Leader, previously it had been Widower.

Shaman-Only slightly above the 4 chiefs in authority, they were the high priests of the Willowers.

The Four Chiefs-Four separate lords/nobles who ruled from Morgantown to Hagerstown VA.

Archdruids-The keepers of the sacred texts of The Earth Mother. The religious captains of the Druids.

Druids-The Religious Warriors of the Earth Mother.

Acolyte-A Willower yet to face the 9 trials.

Notable things about the Willowers
The Willowers is not the only Neo-Pagan society in the post-Flash world, it is said that Neo-Paganism flourished across the pond in Ireland.

All of the known names of the Willowers are as follows: Kat-Archdruid, Grandma Willow, Cutup-Warpath Leader, Widower-Warpath Leader, Bard-Shaman, Fullerine-Shaman, Waldron-Four Chiefs, Aed-Four Chiefs, Briar-Four Chiefs, Brahm-Four Chiefs, Danaus-Archdruid, Ewan-Shaman, Hideharu-Acolyte, Mahina-Acolyte.