| Name | Location 1 | Location 2 | Notes |
|---|---|---|---|
| Campbell | An index compiled by Brent T. Peterson | ||
| Campbell | An index compiled by Brent T. Peterson | ||
| Carley | An index compiled by Brent T. Peterson | ||
| Carley | An index compiled by Brent T. Peterson | ||
| Carlgren | An index compiled by Brent T. Peterson | ||
| Carlson | An index compiled by Brent T. Peterson | ||
| Carlson | An index compiled by Brent T. Peterson | ||
| Carlson | An index compiled by Brent T. Peterson | ||
| Carlton | An index compiled by Brent T. Peterson | ||
| Carmichael | An index compiled by Brent T. Peterson | ||
| Carroll | An index compiled by Brent T. Peterson | ||
| Carroll | An index compiled by Brent T. Peterson | ||
| Carroll | An index compiled by Brent T. Peterson | ||
| Carroll | An index compiled by Brent T. Peterson | ||
| Casey | An index compiled by Brent T. Peterson | ||
| Chalmers | An index compiled by Brent T. Peterson | ||
| Chambers | An index compiled by Brent T. Peterson | ||
| Charbonneau | An index compiled by Brent T. Peterson | ||
| Chardin | An index compiled by Brent T. Peterson | ||
| Chase | An index compiled by Brent T. Peterson | ||
| Christensen | An index compiled by Brent T. Peterson | ||
| Christiansen | An index compiled by Brent T. Peterson | ||
| Christianseon | An index compiled by Brent T. Peterson | ||
| Christopherson | An index compiled by Brent T. Peterson | ||
| Claney | An index compiled by Brent T. Peterson | ||
| Clark | An index compiled by Brent T. Peterson | ||
| Clewell | An index compiled by Brent T. Peterson | ||
| Clewell | An index compiled by Brent T. Peterson | ||
| Clewell | An index compiled by Brent T. Peterson | ||
| Clifford | An index compiled by Brent T. Peterson | ||
| Cockburn | An index compiled by Brent T. Peterson | ||
| Coe | An index compiled by Brent T. Peterson | ||
| Cole | An index compiled by Brent T. Peterson | ||
| Coleman | An index compiled by Brent T. Peterson | ||
| Collopy | An index compiled by Brent T. Peterson | ||
| Collopy | An index compiled by Brent T. Peterson | ||
| Collopy | An index compiled by Brent T. Peterson | ||
| Comfort | An index compiled by Brent T. Peterson | ||
| Conati | An index compiled by Brent T. Peterson | ||
| Condell | An index compiled by Brent T. Peterson | ||
| Conklin | An index compiled by Brent T. Peterson | ||
| Conrad | An index compiled by Brent T. Peterson | ||
| Cover | An index compiled by Brent T. Peterson | ||
| Cover | An index compiled by Brent T. Peterson | ||
| Cover | An index compiled by Brent T. Peterson | ||
| Cronquist | An index compiled by Brent T. Peterson | ||
| Crook | An index compiled by Brent T. Peterson | ||
| Crowley | An index compiled by Brent T. Peterson | ||
| Cutler | An index compiled by Brent T. Peterson | ||
| Dahl | An index compiled by Brent T. Peterson |