I think they would put the body in a barrel of vinegar and it would keep. However Matthias said nothing of being sent back. He just asked for a decent burial.
I found somewhere that Elizabeth's name was Elizabeth Suzanna. I also found reference toSu8sanna Sension who was born in 1600. I suggest that she was Richard's second wife and the mother of the twins. The daughter was named after her grandmother and her mother.
I have temporary 2 week membership in genealogy.com and I found mentions of Richard as Matthias' father and to Nicolas and Elizabeth being Matthias' siblings. There is also mention of Elizabeth as Walter Hoyte's wife. But tyhey also suggest tha t Rhoda Tinker might have been Walter's wife.