A quick examination shows that Charles H. Spurgeon was born a year after William Wilberforce died. So the likelihood that the two ever interacted together is nil. But I am sure that he read about his exploits and maybe even Wilberforce's book A Practical View of the Prevailing Religious System of Professed Christians in the Higher and Middle Classes of This Country Contrasted With Real Christianity.

Peter

If you believe what you like in the gospels, and reject what you don't like, it is not the gospel you believe, but yourself. Augustine of Hippo