I think the person you are talking about is John Quincy Everson. He married Clara Reese. Going back from there is:
William Everson. b. 1775 Wolverhampton, England. Moved to Pittsburgh (Pgh) 1835 or 1838. d. 1854 in Pgh. Married Elizabeth Winteur
William H. Everson: b. Gloucestershire, England before 1838. d. 1898 in Pgh. President of the Pennsylvania Forge (Bank?) President of Marine Bank in Pgh. Organist, 1st Baptist Church in Pgh. WHE Married (1): Mary Harker. Had: Amelia Everson - Married Nathaniel Macrum of E. Liverpool, Ohio. John Quincy Everson - Married Clara Reese Geo. Harker Everson - Mary O. Everson (Polly) - Lived 8 yrs 5 months. Thomas Bissell Everson - Married Elizabeth Miller Barclay Mozart Everson - Married Sarah Scull Marchand. Died 1925 Charlotte Winteur Everson - B. 1856 d. 1937 Married John Cincinnatus Thompson (who was b. 1852 and d. 1934)
WHE Married (2): Sarah Macrum d. 1898 Had: Dr. Malcom Wayland Everson - d. 1936 Married Alice May Twichell. President of the Everson Oil Company. William H Everson (Jr.) - Vetran of Spanish American War.
You can also email Barbara Dzambo at email@example.com as she is preparing a history of the town of Everson, PA.