There is a man Carl Johannes Emil Häftig born in Lummelunda parish,Gotland county on the 15th of Aug 1863.
I have not found any moving-out record for him, but in census 1890 for Visby town he is noticed as absent since 1881, which can indicate that he has moved for ex emigrated.
If this is the man you are asking for, his father was Carl Axel Häftig born in Lummelunda 1834, died there 12th of May 1875. The mother was Anna Chatarina Häftig, born Söderberg 29th of Dec 1834 in the parish Molilla in Kalmar county. She is still living in census for 1900 on Nors in Westkinde parish, Gotland county.
This is of course only a tips!
I am not related