- RACKCLIFFE 1 researcherAlso see: RADCLIFF
- RADCLIFF 1 researcherAlso see: RACKCLIFFE
- RASCOE 1 researcher
- RAYFIELD 1 researcher
- READ 1 researcherAlso see: REED
- READE 1 researcherAlso see: REED
- REDDEN 1 researcher
- REED 2 researchers
- REESE 1 researcher
- RENCHER 1 researcherAlso see: RENSHAW
- RENSHAW 1 researcherAlso see: RENCHER
- RESPESS 1 researcher
- REVEL 1 researcherAlso see: REVELL
- REVELL 1 researcherAlso see: REVEL
- REW 1 researcher
- REYNOLDS 1 researcher
- RHODES 1 researcherAlso see: ROADES
- RICHARDSON 2 researchers
- RICKARDES 1 researcherAlso see: RICKARDS
- RICKARDS 1 researcherAlso see: RICKARDES
- RIDGEWAY 1 researcherAlso see: RIDGWAY
- RIDGWAY 1 researcherAlso see: RIDGEWAY
- RIGGIN 1 researcherAlso see: RIGGINS
- RIGGINS 1 researcherAlso see: RIGGIN
- RIGGS 1 researcher
- RILEY 2 researchers
- RION 1 researcherAlso see: RYAN
- RITCHIE 1 researcher
- ROACH 2 researchers
- ROADES 1 researcherAlso see: RHODES
- ROBBINS 2 researchersAlso see: ROBINS
- ROBERTS 1 researcher
- ROBERTSON 4 researchersAlso see: ROBINSON
- ROBINS 2 researchersAlso see: ROBBINS
- ROBINSON 2 researchersAlso see: ROBERTSON
- RODGERS 2 researchersAlso see: ROGERS
- RODMAN 1 researcher
- RODNEY 2 researchers
- RODOLPHUS 1 researcher
- ROGERS 2 researchersAlso see: RODGERS
- ROSS 1 researcher
- ROUNDS 1 researcher
- ROWLEY 1 researcher
- RUDOLPH 1 researcher
- RUSSELL 2 researchers
- RUST 2 researchers
- RYAN 1 researcherAlso see: RION
- RYDEL 1 researcher
