PETER SCHULTZ GRAY was born in Pennsylvania on June 2, 1847. He was the son of John M. Gray and his wife Sarah. John M. Gray worked as a harness maker. The family was living in Philadelphia when the Census was taken in 1860. By the time the 1870 Census was taken, the family had moved to Camden's North Ward. Peter S. Gray was living with his parents, older sister Sarah, and younger brother John Gray. The family lived next door to Albert Doughty, who would later serve is the Camden Fire Department, as did John M. Gray and both of his sons. Peter Gray was working in a carriage factory, brother John was working as a bricklayer.

John M. Gray was a harness maker by trade. He was living at 30 North 5th Street when he was appointed to the Camden Fire Department on February 8, 1872, taking the place of Charles Elfreth, who had been

 promoted to Driver. John M. Gray served as an extra man with the Hook and Ladder Company, known in more recent times as Ladder Company 1. John M. Gray resigned from the Fire Department on October 8, 1872.

Peter Gray's brother John Gray was appointed to the Camden Fire Department in June of 1873 to replace Edward Allen, who had resigned from his position as an extra man with the Hook and Ladder Company. Peter Gray was appointed to the Camden Fire Department on April of 1874, when David Sparks resigned from Engine Company 2. About that same time Peter S. Gray moved from 30 North 5th Street to 34 North 5th Street. John Gray continued to lived at 30 North 5th. The Gray brothers remained with the Fire Department until the spring of 1876. They were not reappointed that year, but were reinstated in April of 1877. As extra men, they both worked regular jobs in addition the there work as firemen. Peter Gray worked as a machinist, John Gray as a bricklayer.

The 1878-1879 Camden City Directory shows Peter Gray at 819 Carpenter Street and John Gray having move to 434 Lawrence Street.

In March of 1878 the Gray brothers' father, John M. Gray, was appointed janitor of Camden's City Hall. When the Census was again taken in 1880 he was still working as the janitor at Camden's City Hall. He lived on premises with his wife Sarah. Suffering for some time with asthma, he died in mid-September of 1880,

Both Peter Gray and John Gray returned to their original companies 1877, and served until 1882, when due to a change in politics, both were not reappointed. John Gray was brought back in 1884, and when Samuel Elfreth was again elected Chief of the Camden Fire Department in 1885, Peter Gray was reinstated. By the end of 1888 both Gray brothers were working as laddermen with the Hook and Ladder Company (later designated Ladder Company 1). This continued until April 19, 1902 when John Gray died from a heart attack. Peter Gray continued to serve with the Camden Fire Department's Ladder Company 1 until February 1, 1913, when he resigned. He was replaced by William Walton.

They 1883-1884 and 1884-1885 City Directories shows that the Gray brothers were both living at 831 Carpenter Street. The directories show that John was at 36 North 5th Street from 1887 through 1890 and at 38 North 5th Street from 1894 to 1896. He then moved to 418 Henry Street, where he lived out his days.

Peter S. Gray remained at 831 Carpenter Street through at least 1888, By 1890 he had moved to 818 Market Street, where he resided through 1894. By 1895 he had moved to 531 Cedar Street in North Camden. He passed away on May 15, 1926.