I hope you can open this and you will see that it is the same photo that you have but without the dates.I got the photo from William Faville.I don't think you can be right about the date of the photo at 1783.As the dates for the brothers are on the photos the oldest it can be is the beginning of photography at about 1850 and the youngest is the first date of death which I seem to see is 1859.It is interesting to see the names John and Thomas as both are in my family.I cannot find the full names of my grandfathers with increasing numbers of greats but it is somewhere in my office.
To be helpful in your research it would be good for me to have the names back as far as you can go.Mine are as follows.
I would need to check the dates but they are about right.
Warwick Scott Faville born UK 1942 Father Roy Faville born NZ 1908 died Spain 1979 Father Leonard Warwick Faville born NZ 1889 died on ship returning to NZ 1948 Father John Thomas Faville born Gloucester UKabout 1835 died NZ? Father John Faville born Gloucester UKabout 1817 died Gloucester?
I had a look at all the stuff I have and will send some in time.You may like the attached file from the Mormon Church records.
Do send me a phone number and I will happily call you.