There were a lot of people called Shewring, sometimes spelled Showering etc, in Wiltshire. And a scattering of strays around England with variant spellings like Soring and Surring who may have been related.
That tends to happen with strays, because nobody knows how the name is spelled on its home turf, including the stray.
Immigrants from eastern Europe in Leeds, 1885 yes, 1735 very unlikely.