I know that there is a big Jehovah's Witness Kingdom Hall in Las Terrenas, where they do speak English.. not perhaps in the services but some of the elders. Not that that is really an Evangelical Lutheran like service but they are there. Samana, in fact, is the only predominantly Protestant province in the country so that you will find a lot of little churches in Las Terrenas. In fact, there was not even a Catholic church untill just recently when the owner of Balcones de Atlantico did a land swap with the government .. he built a Catholic church and a Navy station and they gave him the beach.. against all laws but the way thngs work.
Your husband may fall asleep in a Haitian church = I think that there are 5 of them there.. but he may also fall asleep on the three to five hour drive to the English services in Sosua.
Grow where you are planted.. is the expression that I was taught.
(that being said, I lived in LT for two years but found I could not root and moved!)