Honorable John Ross Royal Attorney General

Was Attty, General of Philadelphia, succeeded by his his brother-in-law George Read

John Ross seems to have been a Tory who later leaned toward the sentiments of those who revolted against the Crown, but did not live long enough to act in any way during the Revolution itself ~• MMvB vol. curator

was part of the Chancery Lane community in old Philadelphia, named for its concentration of attorneys such as John. His essence is perhaps best captured in Life and Correspondence of George Read by William Read

Applewood Books, 2009 - Biography & Autobiography - 580 pages : here

The officers of the Associated regiment of foot of Philadelphia, on December 28, 1747, were:
Colonel, Abraham Taylor; Lieutenant Colonel, Thomas Lawrence;
Major, Samuel McCall.
Captain, John Inglis; Lieutenant, Lyndford Lardner; Ensign, Thomas
Lawrence, Jr.
Captain, John Ross; Lieutenant, Richard Swan; Ensign, Philip Benezet. (snip)

George's (Rev. George Aeneas Ross') letter and autobiography was written to his son John in 1752
Rev. George died 1753/54
There are some charming passages, such as:

Tis well, the rise of many familys in these parts, is like the head of the Nile unknown. Their glory consists in their obscurity. Tis your satisfaction, that it is otherwise with you, your escutcheon, is without blot, or stain. Contend then for the honor of your family, by a kind and generous behaviour, towards the several branches of it. Relieve them from contempt by your beneficence, and put them above the worst, by exercising that ability towards them, which God has blessed you with: which if you do, God will gather you in his good time, to your honest, and worthy progenitors. I have a quick sense of your filial favors, and you may be sure, that I am Dear son,

your most obliged
affectionate father
Geo. Ross

correspondence between Benjamin Franklin and John Ross, atty, of Chancery Lane in Philadelphia (found in a work entitled Life and Correspondence of George Read) ††

†† Note: George Read was John Ross' brother-in-law. Together with John's brother Col. George Ross, these two Georges both signed the declaration of Independence. John, however did not live to that day, he having died the 8th day of May 1776.