from "The Salisburian" dated 1921 by Elon Galusha Salisbury 3rd.
The Salisbury Ancestry in America:
Humphrey, the first arrival of his own family line in America, was the younger son of John Salisbury and Katherine Nicholas, and was born in Erbistocke, England in 1685, being named for his maternal grandfather He married Mary Milburn, a young lady of his native place of Scotch descent,
in 1706, both of whom were of tender years, and in the following year the twain bade farewell to their home friends, and crossed the stormy seas to Boston, where they had purposed to cast their lot and fortune, leaving the older brother John in the home land to inherit the family estate in old England. An estate in the town of Braintree, a few miles southeast of Boston was purchased and the foundation of a new home in America was laid auspiciously. To them it seemed as though good fortune had smiled upon them and a bright future had dawned on their horizon. To them a son was born on April 17, 1708 as recorded in the annals of Boston, to whom the name of William was given, the first native born of the immediate family in America.
Three months after the birth of the son, and a year after his arrival from England, in July 1708, Humphrey died at the age of 23 years on his farm in Braintree, leaving his young wife and infant child in a strange land. The widowed mother only 18 years of age continued to live on the estate which eventually would pass to the son by inheritance upon the attainment of his majority. In course of time the mother was married to Captain Stephen Hayes, a seafaring man of Braintree, who assumed paternal relations toward his stepson. The young William passed his childhood and youth on the farm under the wholesome home influence and training of his mother, who possessed all the sterling qualities of her Scottish ancestry, but without any personal knowledge of his father, who had been taken from him in infancy.