Thread:Nightlily/@comment-4260948-20170417173238

The "Family Business" flashbacks with the sisters and Rumple etc occur before Stable Boy. Elsa is imprisoned in the urn in 1979 or 1980 (according to your timeline) and Ingrid arrives in out world a year before the curse in 1982. So, in 1979/80, Elsa, 21, is imprisoned in the curse.

Twenty one years prior is 1958/59; according to your timeline, Snow is born c.1953 and Stable Boy, the marriage of Regina and Leopold, etc, occur in 1963... when Elsa is already four (or five, depending on the year of Elsa's imprisonment) years old meaning Ingrid is already in the urn, Helga is dead and Gerda has married her husband. 