Posterior samples and SNR calculations associated with Identifying LISA verification binaries among the Galactic population of double white dwarfs (arxiv:2210.10812, MNRAS, 522, 5358 (2023)). The data folder contains the following: vb_table: Verification binary (VB) candidate properties obtained from electromagnetic (EM) observations. This data was compiled by Kupfer et al. and is available at https://gitlab.in2p3.fr/LISA/lisa-verification-binaries (accessed on 2022 September 2). Used in Table 1. snr: SNR calculations for each VB candidate as a function of mission duration. Used in Figure 2. basic: Gravitational-wave (GW) parameter estimation study of each VB candidate. Used in Table 2 and Figure 3. detection_time: VB SNR calculations with source property (and LISA launch time) uncertainty taken into account. Used in Figure 1 and Figure 4. em_priors: GW parameter estimation study with EM information included in the priors. Used in Figure 5. unknown_noise: GW parameter estimation study with the inclusion of noise parameters to vary the PSD. Used in Figure 6. filtered_populations: Source properties of DWDs nearby in frequency to each VB candidate. See the confused_sources.ipynb notebook. Used in Figure 7. confusion_snr: SNR calculations of the above confusion sources. Used in Figure 7. confusion: A analysis of V803Cen with a realistic Galactic population of DWDs included in the data. Used in Figure 8. Code to reproduce every figure from the paper is available in plots. Supplementary notebooks associated with the generation of a realistic data instance (i.e. including a simulated Galactic population of DWDs nearby in frequency to V803Cen) can be found in notebooks.