Backtracing the birth places of some VFTS O-stars outside NGC 2060 and NGC 2070 with Gaia DR2 proper motions. The thick lines indicate the past movement of stars given their inferred stellar ages and the “cones” (dotted lines) represent the range of possible motions because of proper-motion uncertainties. The longer thin lines represent the larger travelled distances from the age uncertainties. The red circles show NGC 2060 and NGC 2070 while the green circles show Hodge 301 and SL 639. The background image is a ESO WFI composite based on observations made with ESO Telescopes at the La Silla Observatory under programme ID 076.C-0888, processed and released by the ESO VOS/ADP group.