Based on the absence of provided plot details or character information for 'Lower Saxony under Construction', it is not possible to assess the presence or portrayal of LGBTQ+ characters or themes. Consequently, the film is categorized as N/A for LGBTQ+ depiction.

Based on the information provided, the film 'Father of the Family' (1951) does not contain identifiable transsexual characters or themes. Consequently, an evaluation of its portrayal is not applicable due to the absence of relevant content for analysis.

The movie does not contain any action or adventure elements.

As a 1951 documentary, "Lower Saxony under Construction" primarily depicts real-world events and people without adapting fictional characters or intentionally altering the gender of established historical figures. Therefore, it does not contain instances of gender swaps.

As a 1951 German documentary about regional construction, the film primarily depicts real people from that historical context. The concept of a 'race swap,' which involves altering the established race of a character or historical figure, does not apply to this type of factual portrayal.