Well, he (and his wife, who died in 1962) are buried in unmarked graves (at their requests) - although cemetery workers have always kept careful watch over the locations and are willing to show the sites to visitors. Don't know the address, but, at the funeral, the mourners were able to walk from the church (in the town of Stornoway, where Pink died) to the cemetery's burial site, so it must not be far from the town (by this time, 58 years later, the cemetery might even be "in" town as the town has [doubtless] expanded.