Skip to the content
Photographer

Oscar G. Mason

Oscar Gleason Mason (c. 1830 – March 16, 1921), better known as O. Mason, was an American photographer and radiographer. For most of his professional life, O. Mason directed the photographic department of Bellevue Hospital in New York City.

Also recorded as O. G. Mason

Oscar G. Mason

Name
Oscar Gleason Mason
Born
c. 1830
Died
March 16, 1921
Known for
Photography, Radiography
Nationality
United States
Occupation
photographer

VALÉORINE Encyclopedia

VALÉORINE documentary reading

Documentary summary

Oscar Gleason Mason (c. 1830 – March 16, 1921), better known as O. Mason, was an American photographer and radiographer. For most of his professional life, O. Mason directed the photographic department of Bellevue Hospital in New York City.

Admitted source layer · organised and presented by VALÉORINE

Reference Check

Propose documentary evidence for Oscar G. Mason. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.

Sign in to contribute

World of VALÉORINE

Documentary connections

Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.

Documentary evidence

Documentary basis

Authority files

wikidata · Q7105989 · wikipedia · Oscar G. Mason

In this article

  1. 01Biography
  2. 02Visual art and other activities
  3. 03Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 18 August 2026.

Elsewhere in Photography

11,392 published records in this field, each with its sources named.

Read the complete photography index

For owners

Own a work by Oscar G. Mason?

A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.