(1) He is married to Antje Boersma.
They got married on June 20, 1925 at Sneek (Fr), he was 21 years old.Source 4
The couple were divorced from October 30, 1947 at Leeuwarden (Fr).
(2) He is married to Jeltje de Vries.
They got married after 1948.
Geboorteregister 1904, Sneek
Overlijdensregister 1967, Achtkarspelen
https://www.graftombe.nl/names/info/237500/hottinga
Huwelijksregister 1925, Sneek