Japanese naval officer presence at British ports during the Anglo-Japanese Alliance (1902–1923) — documented cases of long-term residence or personal relationships?
I'm conducting genealogical research into a possible Anglo-Japanese family
history connection centred on Chatham, Kent — home of the Royal Navy's
principal dockyard — in the mid-1920s.
I understand that the Anglo-Japanese Naval Alliance (1902–1923) involved
significant exchange between British and Japanese naval personnel,
including Japanese officers training at and visiting British
establishments.
\*\*My research questions:\*\*
Is there documented evidence of Japanese naval officers being stationed
at or making extended visits to Chatham specifically during the Alliance
period and its immediate aftermath (roughly 1902–1930)?Are there known cases — documented in naval records, local records, or
historical scholarship — of personal relationships between Japanese
naval personnel and British civilians during this period?Following the formal end of the Alliance in 1923, did Japanese naval
or diplomatic presence at British ports continue through the late 1920s
and into the 1930s? If so, what form did it take?How were mixed Anglo-Japanese children typically registered and
documented in Britain during the interwar period? Were there common
patterns of paternity concealment in such cases?With the outbreak of war with Japan in December 1941, what pressures
existed on British individuals or families with Japanese connections to
conceal that heritage?
I'm asking from a historical and genealogical research perspective. Any
references to primary sources, archives, or relevant secondary
scholarship would be particularly valuable.