Answer
"Martinus J.G. Veltman" is pronounced as "mɑrˈtinʏsʏsˈtinʏs xoːdəˈfridʏs ˈtini ˈvɛltmɑn" in Dutch. The "y" in "Martinus" is pronounced like the "i" in "tin," and the "g" in "J.G." is silent. The "oe" in "xoederfriedys" is pronounced like the "oo" in "boot," and the "t" in "tini" is pronounced like the "t" in "tin." The "v" in "Veltman" is pronounced like the "v" in "van."