Andrew Gray

Born in Lochgelly, Fife, in 1847, Andrew Gray studied at the University of Glasgow and became one of Lord Kelvin’s closest assistants, serving as his private secretary and scientific aide in the 1870s and early 1880s. That early partnership placed him at the center of important work in physics at a time when electricity and magnetism were rapidly developing fields.

In 1884 he became Professor of Physics at University College of North Wales in Bangor, and in 1899 he returned to Glasgow as Professor of Natural Philosophy, succeeding Kelvin. He was known not only as a researcher but also as a patient and influential teacher, and he was elected a Fellow of the Royal Society.

Gray is especially remembered for major works such as The Theory and Practice of Absolute Measurements in Electricity and Magnetism, Treatise on Bessel Functions, and The Scientific Work of Lord Kelvin. He died in Glasgow in 1925, leaving behind a reputation for careful scholarship and clear scientific writing.