How many brother's and sister did sir isaac Newton have? What were their names?

Question

names please

Answer 1

1 half brother - samuel
2 half sisters - sarah & sallie

Answer 2

excerpted from credible biographical material:
see last paragraph

His mother was Hannah Ascough of the antient family of the Ascoughs of Market Overton in the County of Rutland, she was married a second time, to the Reverend Mr Benjamin Smith Rector of North Witham & had by him a son & two daughters from whom are descended the four nephews & four nieces who inherit Sir Isaac's personal estate

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April 1642(exact date unknown): Marriage of the elder Isaac Newton, an illiterate but quite well-to-do yeoman farmer, to Hannah Ayscough.
Oct: Death of the elder Isaac Newton (buried 6/16 Oct.).


Isaac Newton was born on Christmas day, a tiny baby. He was not expected to survive and his mother delayed his baptism until 1 January 1643. The next recorded event in his life was more than three years later, when his mother married
the Revd Barnabas Smith, left her first-born son with her parents in Woolsthorpe, and went off to the rectory of North Witham, 1½ miles south of Woolsthorpe, to rear a second family. Smith was wealthy, with an estate worth £500 per
annum in addition to the rectory.

There is some evidence that Newton, who never mentioned his stepfather, hated him, and he probably did not care for his grandparents either. He recorded no affectionate recollection of his grandmother, and made no mention whatever of his grandfather. The animosity was shared; grandfather Ayscough pointedly omitted him
from his will. The unpleasant aspects of Newton's mature personality may have had their roots in this traumatic period.The family were reunited in 1653, when Smith died and Newton's mother returned to Woolsthorpe with his half-brother and two half-sisters

Hannah returns to Woolsthorpe with her three children by her second marriage, Mary (b. 1647), Benjamin (b. 1651) and Hannah (b. 1652).

Answer 3

Sure what the first answerer said.Now I don't have to research!