Ada Lovelace (1815-1852) — Integration specialty. English mathematician and writer whose annotations on Charles Babbage's Analytical Engine — published in 1843 — contained what is now recognized as the first computer program, along with a vision of general-purpose computing (manipulating symbols rather than just numbers) that anticipated by a century what the field would become. Lovelace's contribution was the integration labor that turned Babbage's mechanical-engineering discovery into a comprehensible vision of what the device could do — she translated, annotated, extended, and explained the work in ways Babbage himself never quite managed. Without Lovelace's notes, the Analytical Engine might have been remembered as a curious nineteenth-century machine rather than as the conceptual ancestor of the modern computer. The pattern: the integration specialist whose work makes the discovery specialist's contribution legible to the future. Lovelace died at thirty-six; the integration of her own contribution into the public record was slow but is now well-established. The programming language Ada is named for her.