Here goes -
1. Ebenezer - sacred to the memory of Ebenezer, second son of George and Dorothy Edmund, who died 12 Spt 1850 aged 17 years.
2.Eliza - in memory of Eliza, daughter of J and M Edmund, who died May 15 1847, aged 2 years. Also of H E, who died May 18 1853, aged 1 year. Also of W E who died April 26 1854, aged 3 years.
3. Elizabeth -see [5]
4. W - see [2]
5. William- er cof am William Edmund, o'r dref hon; yr hwn a fu farw mewn tangnefydd. Ionawr 3 1856, yn 64 mwlydd oed. Bu an ddiacon gyda a Trefnyddion Calfinaidd am lawer [of - should be o'r??] flynyddoedd, a gydawodd gylch helaeth o gyfeillion mewn galar mawr ar ei ol. Ac Elizabeth, eianwyl briod, yr hwn ayn yr un modd a'i dylynoedd, Medi 17 1860, yn 74 oed. "Canys ffyddlawn y cyfrid hwynt".
You might [like farm name etc.] get more info. from the parish register, of course.
I have assumed you can translate [5] - if not, get back to me?