Claim profile

Margaret Grubb

American aviator (1907–1963)

  • Fame46.5
  • Momentum0.0
  • Wikipedia3.3K
Source-basedFalling
Lived 1907–1963, aged 56United States
United StatesUnited States
  • Era
    1907–1963
    Aged 56
Summary
Updated 2026-06-18

Margaret Louise "Polly" Grubb was the first wife of pulp fiction author and Scientology founder L. Ron Hubbard, to whom she was married between 1933 and 1947. She was the mother of Hubbard's first son, L. Ron Hubbard Jr., and his first daughter, Katherine May "Kay" Hubbard.

Where to find them

Platforms

No platforms connected yet.

By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Falling
46.5
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical4.1
Source confidence25.0
Completeness50.0
Global rank
—
Country rank
—
Category rank
—
Receipts

Sources