I’m at my weekly visit to the library.
Variety Obituaries 1905-1986. No Standwick, Standwyck, or Stanwick; the only Stanwyck entries are Barbara and producer Jay (d. 1967).
Personal Name Index to ‘The New York Times Index’ 1851-1974. No woman named Standwick, Standwyck, Stanwick, or Stanwyck (other than Barbara).
The New York Times Theater Reviews/Index 1870-1919. No Standwick, Standwyck, Stanwick, or Stanwyck. Index 1920-1970. Ditto, except for Barbara Stanwyck and producer Jay Stanwyck.
No Standwick, Standwyck, Stanwick, or Stanwyck in the indexes to:
The London Stage, 1890-1899
The London Stage, 1900-1909
The London Stage, 1910-1919
The London Stage, 1920-1929
The London Stage, 1930-1939
The Oxford Companion to Canadian Theatre. No Standwick, Standwyck, Stanwick, or Stanwyck in the index.
1900 U.S. census: No Standwyck; two Standwick records: Jane H. Standwick, 58, born in New York, res. with sister Mary in Beverly, Mass., no occupation listed; 6 Stanwick households but no Jane and no actress; no Stanwyck.
1910 U.S. census: No Standwyck or Stanwyck; 5 Standwick household but no Jane and no actress; 16 Stanwick households but no Jane and no actress.
1881 census of England and Wales: No Stanwyck; Jane Standwick, 24, single, dressmaker, in Guildford, Surrey; Mary Jane Stanwick, 15, in Eldon, Durham (married in 1882); no Joan by any of the spellings.
1891 census of England and Wales: One Standwick (Lizzie, 16, in London); no Standwyck; 20 Stanwick records but no Jane or Joan and no actress; no Stanwyck.
1901 census of England and Wales: See my second posting above.