Hi - no relation, but according to Griffiths Valuation http://www.askaboutireland.ie/griffith-valuation/index.xml?a..., there is no Robert Crawford in Kildare c. 1853, although there are other Crawfords listed.

According to a ROBERT CRAWFORD/Wilde family tree on ancestry.com belonging to Rebecca Wilde in Australia, Robert was born in Lanarkshire, Scotland on 11 May 1840, parents Robert and Janet, spouse Mary Parker. Robert jnr died in Hobart, Tasmania on 31 Dec 1918, aged 75. Is this your Robert?