Johannes Tertsonen is Maire Makkonen's 6th cousin once removed. Sininen linja.
You (Maire Makkonen s. Liukkunen)
→ Laila Liukkunen s. Tuomela
your mother → Maria Ivanintytär Kuksin-Tuomela
her mother → Ivan Leonteinpoika Rotta
her father → Leontei Feodorinpoika Rotta
his father → Feodor Nikolainpoika Levy
his father → Nikolai Kirilinpoika Levy
his father → Kiril Akimanpoika
his father → Anisim Akimanpoika
his brother → Semen Anisiminpoika
his son → Ivan (vanhempi) Semeninpoika
his son → Jeudokia Ivanintytär
his daughter → Ksenia Konstantinintytär
her daughter → Aleksi Ivaninpoika Tertsonen
her son → Johannes Tertsonen
his son
