| Name | Role | Place | Source | |
|---|---|---|---|---|
| Anna Cossing | Registered | 1774 | Amsterdam | Population register |
| Anna Cossing | Registered | 1774 | Amsterdam | Population register |
| Cossing | Registered | 1706 | Amsterdam | Notarial records |
| Henders Cossing | Lidmaat of gevormde | 1728 | Arnhem | Member register |
| J.P. Cossing | Military | Studbooks |
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