In my collection of hymnbooks I have one entitled 'The Hymnal, Army and Navy', United States Government Printing Office, Washington, 1942. The version in it, ascribed to Rev.Robert Lowry, 1826-1899, has four verses. V.1 Shall we gather...., V.2 On the margin...., V.3 On the bosom of the river...., V.4 Soon we'll reach the silver river, Soon our pilgrimage will cease. Soon our happy hearts will quiver With the melody of peace.
Also Sacred Songs and Solos, 1200, has V.1 Shall we gather.... V.2 On the margin...., V.3 Ere we reach.... V.4 At the shining....(instead of 'smiling', which fits more logically with 'Mirror' in the next line), and V.5 Soon we'll reach.... Again, all credited to Lowry.
The rest of my hymnbooks are British.