This dataset comprises trace-metal and clumped isotope (Δ47) measurements on multiple species of benthic foraminifera from 13 sediment cores in the Northwest Atlantic (Cape Hatteras, Blake Outer Ridge, Bermuda Rise, and Corner Rise), as well as three additional cores retrieved south of Iceland. These cores were collected during Ocean Drilling Program Leg 172 in 1997, R/V Knorr cruises 178 and 198, and R/V Charles Darwin cruise 159 in 2004 as part of the RAPiD programme. The data span two time slices: the mid-to-late Holocene (MH; 2–6 ka BP) and the Last Glacial Maximum (LGM; 19–23 ka BP). Derived deep-ocean temperature and carbonate ion concentration (ΔCO₃²⁻) estimates are included, along with contemporaneous seawater oxygen-isotope values calculated using trace-metal- and Δ47-derived temperatures combined with previously published stable-isotope data (Wharton et al., 2024). Collectively, these data provide insights into the vertical hydrographic structure of the North Atlantic during the MH and LGM and help trace the origin of the water masses present in the Northwest Atlantic. Trace-metal analyses were performed using a Thermo Finnigan Element2 magnetic-sector inductively coupled plasma mass spectrometer (ICP-MS) at the University of Colorado Boulder. Δ47 analyses were performed using a Thermo Scientific Kiel IV carbonate preparation device coupled to a Thermo Scientific MAT 253 mass spectrometer (conventional DI method) and a Thermo Scientific 253 Plus mass spectrometer using the long-integration dual-inlet (LIDI) method.