This dataset is the result of a study into the acquisition of spatial devices in two learners of Sign Language of the Netherlands (NGT). This study is one of the four studies carried out by Eveline Boers-Visker in the context of her doctoral research entitled ‘Learning to use space: a study into the SL2 acquisition process of adult learners of Sign Language of the Netherlands’ (2016-2020). For this particular study, two learners of NGT were followed longitudinally. In two documents, one in English and one in Dutch, an overview is presented detailing the localized entities and the spatial devices used to localize these entities produced by the learners. The study is described in detail in Chapter 3 of the dissertation.