Sentence:  Brethren: Here is the pipe which your <WSD>grandfathers</WSD> used to smoke with when they met together in councils of peace. And here is some of that good tobacco, prepared for our <WSD>grandfathers</WSD> from God:—When you shall taste of it, you shall feel it through all your body; and it will put you in remembrance of the good councils your <WSD>grandfathers</WSD> used to hold with the English, your brethren, and that ancient friendship they had together. 
Meaning of the word marked with <WSD> tags:  A male forefather.