My first thought was it depends on who you are asking? Emma or her husband. Or one of the seven kids who might not want another sibling
Okay Elma m. Arthur John in 1931 when she was about 19 and Arthur died in 1961, when Elma was about 49.
If they continued to live together until Arthur died in 1961+ she was unlikely to have had more children. Whether she married a 2nd time or not, it is unlikely she birthed more. Adopted, perhaps.