Based on the provided information, the film 'Fireman, Save My Child' does not feature any identifiable LGBTQ+ characters or themes. Consequently, there is no specific portrayal to evaluate, resulting in an N/A rating for its depiction of LGBTQ+ elements.

This early silent film, a brief narrative about a fireman rescuing a child, contains no identifiable transsexual characters or themes. The plot focuses solely on the rescue, leaving no room for such portrayals.

The movie does not contain any action or adventure elements.

As an original silent film from 1921, there is no evidence of pre-existing source material, historical figures, or prior adaptations that would establish character genders before this film's creation. Therefore, no characters could have undergone a gender swap.

There is no readily available information indicating that "Fireman, Save My Child" (1921) is an adaptation of source material with pre-established character races, nor does it depict historical figures. Thus, no race swaps can be identified.