Residence Marital Status: SingleRelation to Head of House: Son.
Justice Precinct 5, Dallas, Texas, USA. 
Marital Status: SingleRelation to Head of House: Son.
El Centro, Imperial, California, USA. 
↑ Source: #S606880241 Year: 1920; Census Place: El Centro, Imperial, California; Roll: T625_99; Page: 12B; Enumeration District: 12; Image: 878
It may be possible to confirm family relationships with Richard by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: