This list is as of 250AC (the end of Volume 1), so it doesn't reflect any new marriages.
Ragnar family:
Michael – Born 210AC. Black hair, brown eyes.
Nyra – Born 210AC. Blonde hair, ice blue eyes.
Violet – Born 230AC (3rd month 7th). Black hair, ice blue eyes.
Evelyn – Born 237AC (4th month 26th). Blond hair, ice blue eyes.
Ryden – Born 240AC (2rd month, 16th). Black hair, blue eyes.
Arthur – Born 241AC (7th month, 18th). Blond hair, brown eyes.
Anari – Born 244AC (1st month, 5th). Dark blond hair, brown eyes.
Tylar 'Raggy' (Michael's ASOIAF father)
Aiana (Michael's ASOIAF mother)
Nyra's family: Voktergård
Ethan – Born 180AC – Died 252AC
Jess – Born 189AC – Died 252AC
Zane – Born 212AC
Cait (Zane's wife) – Born 214AC
Jeran (Zane's son) – Born 233AC (9th month)
Tarla (Zane's daughter) – Born 236AC (10th month)
Ethan (Zane's son) – Born 238AC (2nd month)
Lucas (Zane's son) – Born 240AC (12th month)
Aline (Zane's daughter) – Born 243AC (2nd month)
Dorthy (Zane's daughter) – Born 246AC (4th month)
Denzin (Zane's son) – Born 247AC (8th month)
Koryn – Born 208AC
Alessa (Koryn's wife) – Born 213AC
Bran (Koryn's son) - Born 235AC (2nd month)
Dacey (Koryn's daughter) – Born 237AC (9th month)
Jesryn (Koryn's daughter) – Born 240AC (8th month)
Tobas (Koryn's son) – Born 241AC (12th month)
Riler (Koryn's son) – Born 243AC (7th month)
Kegan (Koryn's son) – Born 246AC (10th month)