According to the Wikipedia article, Renie Isabel Riano was born on 7 August 1899 in England. This is confirmed by the England/Wales index of registered births.
Name: Rene Isabel Riano
Event Type: Birth Registration
Registration Quarter: Jul-Aug-Sep
Registration Year: 1899
Registration District: Lambeth
County: London
Event Place: Lambeth, London, England
Volume: 1D
Page: 316
Affiliate Line Number: 316
And also by the SSDI:
Renie Riano
United States Social Security Death Index
Age: 72
Given Name: Renie
Surname: Riano
Birth Date: 07 Aug 1899
State: California
Last Place of Residence: Los Angeles, California
Previous Residence Postal Code: 90069
Event Date: Jul 1971
Wikipedia identifies her parents as Irene and Robert Riano. You could obtain her birth certificate to confirm the names of her parents.
An article in the NYT, 20 December 1925 ['The Sisters Nash and Some Others'] identifies her mother as Irene Riano. You can find this article and numerous others at the Fulton History site - search for the words 'Renie + Riano + Irene.'
