During his time in Trinidad, Souper married Oriana Jane Reinagle (1804–1890), daughter of Ramsay Richard Reinagle, in 1827.
This was a marriage of first cousins.

Philip and Oriana had a large family:
Woodford Crowe (1834-17 Jan 1848)
Charles Edward (1842–1909), army officer, born in Bedford, who married in 1871 Annie, eldest daughter of Richard Bolton McCausland
Francis Abraham (1844-1929), clergyman, 4th son, who in 1873, married Francis (Fanny) Emmeline (1849-1888), 3rd daughter of James Beaumont, of Lee, Kent.
One of their daughters, Oriana Fanny Souper, married Edward Adrian Wilson.
Another daughter, Constance Mary Souper (1879-1931) married into the Bragge family - Captain OC Bragge (1876-1958)
Sarah Johnston married Francis Frederick Rowcroft
Julia Ann, second daughter, died 1863
Oriana Rachel, third daughter, married in 1860 George Cleland Rowcroft, army officer, and was mother of George Francis Rowcroft DSO
Jessie Georgiana (also Jesse, Jessey), fourth daughter, married Gerald de Courcy O'Grady
Jane Hassall, married Rev. John Paget Parker
Frances Lloyd, one of twin daughters, died on 28 November 1839 at Eastcott, near Harrow, at age 2.
One daughter was born at Bedford in 1846.
During his time in Trinidad, Souper married Oriana Jane Reinagle (1804–1890), daughter of Ramsay Richard Reinagle, in 1827. This was a marriage of first cousins.
Philip and Oriana had a large family:
Woodford Crowe (1834-17 Jan 1848)
Charles Edward (1842–1909), army officer, born in Bedford, who married in 1871 Annie, eldest daughter of Richard Bolton McCausland
Francis Abraham (1844-1929), clergyman, 4th son, who in 1873, married Francis (Fanny) Emmeline (1849-1888), 3rd daughter of James Beaumont, of Lee, Kent. One of their daughters, Oriana Fanny Souper, married Edward Adrian Wilson. Another daughter, Constance Mary Souper (1879-1931) married into the Bragge family - Captain OC Bragge (1876-1958)
Sarah Johnston married Francis Frederick Rowcroft
Julia Ann, second daughter, died 1863
Oriana Rachel, third daughter, married in 1860 George Cleland Rowcroft, army officer, and was mother of George Francis Rowcroft DSO
Jessie Georgiana (also Jesse, Jessey), fourth daughter, married Gerald de Courcy O'Grady
Jane Hassall, married Rev. John Paget Parker
Frances Lloyd, one of twin daughters, died on 28 November 1839 at Eastcott, near Harrow, at age 2. One daughter was born at Bedford in 1846.
Philip Dottin Souper