Hi Aghadowey,
Thank you for this death date. It is helpful to the cause. However, this death looks like it was Richard Dawson Boyd Senior who died in 1896, as it says that administration was granted to Sarah E. Smyth, the daughter. I was looking for Richard Dawson Boyd, Jr. in 1901. I will look again under Whiteabbey.
So if both Sr. and Jr. were living in Cloughfern, sounds like it was the family home and that might be where I would find the births of the siblings.
As for familysearch, I did search for Richard Dawson Boyd there, and he did not come up for some strange reason.
Thanks again.
Peggy