- Reese, C. B. (Chauncey B.), 1837-18701
- Rhodes, James Ford, 1848-19271
- Rockwell, W.O.D.1
- Rockwell, W.O.D., C.E, Shellman, W.F.1
- Rockwell, W.O.D., C.E.1
- Rosenberg, Jan1
- Ross, Catherine Laverne, 1948-1
- Ruger, A.1
- Russell, John, active 1733-17951
- Saunders, H. G.1
- Schagen, Gerard A.1
- Scott, J. T. (Joseph T.)1
- Seligmann, Johann Michael, 1720-17621
- Sewell and Associates Inc, Engineers and Architects1
- Sholl, Charles1
- Shoulder, Thomas [Shruder].1
- Shutting, Rudolph J1
- Silver, Thomas1
- Smith, J. Calvin1
- Smith, J. Harmon1
