| Name | Role | Place | Source | |
|---|---|---|---|---|
| Clark & Percy (2 M.R.) | Registered | 's-Gravenhage | Individual Files | |
| Clark c.s. (9 M.R.) | Registered | 's-Gravenhage | Individual Files | |
| M.R. Clark | Travelers | 1929 | New York | Passenger registers |
| M.R. Clark | Travelers | 1954 | New York | Passenger registers |
| M.R. Clark | Travelers | 1962 | Rotterdam | Passenger registers |
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