1. Collection for sale and recycling of old newspapers, magazines, rags, and return bottles (1948–1951).
  2. Dishwasher and busboy, Conley’s Ice Cream Parlor (1951–52).
  3. Soda-jerk and short-order cook, Conley’s Ice Cream Parlor (1953–57).
  4. Clerk, assessor’s office, City of Providence (1955).
  5. Laborer and jack-hammer operator, W. L. Conley Construction Company (1955–59).
  6. Electrician’s assistant, Bouressa Electric Company (1957).
  7. Production line worker, Clover Club Bottling Company (1957).
  8. Maintenance man, tank farm, Texas Oil Company (1958).
  9. Roofer and sider (1958). Name of company forgotten.
  10. Delivery person for tourist promotion literature, Rhode Island State Division of Tourism (1959).
  11. Driver of used autos from Providence to Massachusetts auction house for several local auto dealers (1959).
  12. Translator of Latin, French, and Spanish manuscripts, University of Notre Dame Archives (1959–60).
  13. Stockroom clerk, Metalart Buckle Company (1960).
  14. Carpet and Upholstery Cleaner (on-site), John R. Casey Rug Company (1961–62).
  15. Magazine Salesman, Mutual Readers Service (1961).
  16. Teacher of Civics, World, History, and Guidance, Home Room teacher, and assistant track coach, LaSalle Academy 1961–62).
  17. Reference Librarian, Social Science Reading Room, University of Notre Dame Library (1962–63).
  18. Teaching Assistant, History Department, University of Notre Dame (1962–63).
  19. Private tutor (1962–1974).
  20. Teacher of various elementary school subjects in the remedial summer school of St. Michael’s Parish (1960s).
  21. Professor of History and Constitutional Law in the day school, evening school, and graduate school of Providence College (1963–1993).
  22. Proprietor of P.T. Conley Books, a company that acquired and sold used and rare books (1963–1997).
  23. Research assistant to the Rhode Island Constitutional Convention (1964–68).
  24. Policy advisor and speechwriter for Attorney General candidate Herbert F. DeSimone under contract with the Fitzgerald, Toole Advertising Agency (1966).
  25. Chairman of the Advisory Council and speechwriter for U.S. Congressman Robert O. Tiernan (1967–1974).
  26. Partner of Appraisals Americana, a firm that performed appraisals of books and various historical items for libraries and donors (1970s).
  27. Adjunct Professor of constitutional studies in the LEAA program of Salve Regina University (1972–81).
  28. Partner of Independent Research Associates, a political consulting firm that prepared position papers and speeches for political candidates such as Governors Frank Licht, Philip Noel, and Joseph Garrahy (1968–76).
  29. Writer and Publicist for the state’s Community Action Programs under contract with the Rhode Island Department of Community Affairs (early 1970s).
  30. Supervisor at the “Spitbox” (i.e., urinalysis lab) at Narragansett Race Track (1976–77).
  31. Historical consultant for municipal and neighborhood architectural studies published by the Rhode Island Historical Preservation Commission (1976–86).
  32. Special Assistant, Speechwriter, and Chief-of-Staff for Providence Mayor Vincent A. Cianci, Jr. (1977–84).
  33. Attorney-at-Law, Sole Practitioner (1979–  ).
  34. Title Examiner for the Providence Redevelopment Agency (1980–84).
  35. General Counsel to the President of the 1986 Rhode Island Constitutional Convention.
  36. Realtor and Real Estate Developer (1981–  ).
  37. Author and writer with royalties or stipends from several publishers — Donning, Arcadia, Praeger, Worldmark, University of Notre Dame Press, Oxford University Press, the History Press, etc. (1982–  ).
  38. Landlord for my rental property (1990–  ).
  39. Mortgage Broker (1990–  ).
  40. Adjunct Professor of Constitutional Law, Roger Williams University Law School (2008).