Tesla family genealogy (treemily.com and Google snippets)

Investigator (STEP I), run 2026-10-08. Saved page text (evidence trail, not for publication) is in research/pages/. Findings are leads, not verdicts.

Searched

"Petar Savo" OR "Peter Savo" Tesla nephew Knin genealogy sisters Angelina Milka Marica
"Nicholas Terbo" OR "Nikola Trbojevic" Tesla nephew engineer Detroit William Terbo
"Peter Savo" Detroit OR Belgrade OR Bucharest "trade" 1930s OR 1940s -Tesla (negative: unrelated namesakes, including a 1984 Seafarers Log obituary of a Peter Savo, aged 61, who is too young to be this man)
Fetched: https://treemily.com/blog/nikola-tesla-family-tree (a secondary genealogy blog)

Treemily: "Angelina gave birth to four: Petar, Nikola, Marica, and Mica; so did Marica - her offspring were Ljubisa, Milun, Dragisa, and Sava. Lastly, Milka had only one child, a daughter named Gina."
Snippets: "my father, Nikola Trbojevich (socially, Nicholas Terbo), was Tesla's nephew" (William Terbo, Tesla Universe); "His father, Nicholas Terbo (Nikola Trbojevich), a world known research engineer, mathematician and inventor, was nephew and friend of Nikola Tesla" (Valone, Harnessing the Wheelwork of Nature).

Claim 2: Tesla had a nephew named Petar (Angelina Trbojević's son) and a nephew named Sava (Marica Kosanović's son). Ahlers's "Peter Savo", "uncle on his mother's side", fits the family's shape but not a recorded surname. Readings to weigh: Savo was one of these men under another name, or misremembered; he was a more distant relative calling himself a nephew; or he was not related. Deciding records: the Tesla family tree held by the Nikola Tesla Museum (Belgrade); Knin parish registers; US naturalisation files (Detroit, New York).
The book's "Terbo, his mother's maiden name" conflicts with the record ([memory, high] Tesla's mother was Đuka Mandić, as the deep read also notes). Terbo is the anglicised Trbojević, the nephew's family name.