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Just a quick look at IGI brings up 2 children to Christopher Union & Catherine Styles:
1. Richard Union bobrn 7 Feb.1865 at 2 Bull Alley, Dublin, Dublin, Ireland.
2. Anne Union born 22 May 1867 at 1 Walker's Alley, Dublin, Dublin, Ireland.
Also a daughter Christina born 4 Dec.1869 Dublin (died 26 Mar.1937) to Christopher Union and Catherine Flynn. Since this one is an entry submitted by LDS member rather than details extracted from records it could be incorrect.
After I typed the above information had a look on BVRI v.2 and found: female born 4 Dec.1869 2 North City, Dublin to Christopher Union & Kate Styles! The birth for Christina must be the same child but the person submitting the information has mother's maiden name down wrong.
Re: Sarah Myers- is this her maiden name?