Another shows Mr Thomas holding a swastika flag, alongside Ms Patatas which Barnaby Jameson QC, prosecuting, said were from the “Thomas-Patatas family album”.
Mr Jameson also told the court their child’s middle name is Adolf.
Jurors were told Ms Patatas sent a WhatsApp message to convicted National Action member Darren Fletcher, declaring that “all Jews must be put to death”.
The neo-fascist National Action group was banned under terrorism laws in December 2016.
A host of Nazi and far-right memorabilia – as well as National Action flags, badges and banners – were found at the couple's home, the court heard.
Also recovered was an "extensive" collection of weapons, including crossbows, knives and an axe, jurors were told.
The trial continues.