The rock was named by DI personnel following their survey in 1933.

Charted and named by DI personnel during the period 1927-30.

The name appears on a chart based upon a survey by DI personnel in 1930.

Named by DI personnel who charted the area during the period 1926-30.

The island was roughly surveyed by DI personnel in 1927.

The name is first used on a chart based upon survey work by DI personnel in 1926-30.

The area was roughly surveyed by DI personnel in 1933.

The name appears on a chart based upon surveys by DI personnel in the period 1926-30.

Charted and named by DI personnel in the period 1925-29.

The name was probably given by DI personnel who roughly surveyed the island in 1927.