Yes, a funeral Mass can be in the plural.My mind goes strange places at times but now I’m curious. Say a family lost two or more of their children in a tragic accident - could they have one funeral Mass for both? Or another example, say a war where a mass grave is discovered and it wouldn’t be possible to recover the bodies separately? Sorry for the morbid questions but I wonder because I write fiction or maybe someone will ask me.
Group funeral in the wake of a tragedy: Our Lady of the Angels school fire, Chicago, 1958. There was a single funeral for 3 nuns killed in the fire. There was also a mass funeral for 24 or so (not sure of the exact number) of the children killed, out of the 92 child fatalities. I recall this tragedy fairly well in that when it occurred I was attending an old, wooden parochial grammar school originally built in 1905, and the parents approached the pastor regarding the need for a new school building, which was eventually built.
It is structured exactly the same way. There is no difference except for the obvious fact that the prayers are changed from the singular to the plural.
I just couldn’t remember if I had ever heard of a funeral for more than one person, and since I had no examples to draw from, I tried Google but my search terms didn’t work because I couldn’t get it specific enough to yield the results I was after. So I was still wondering what I had wondered in the first place, namely whether the liturgy is required to be for only one deceased soul at a time. I appreciate your answers - they are just what I was hoping for.