Reflecting on the terrible choice made by Kurt and Grete Paechter in 1939 to send their children away on the Kinder transport while staying behind themselves to tend to their aging parents, the parallels to our Ringel family situation are evident. 

Elly Ringel was a first cousin once removed from Kurt Paechter, her grandmother being the older sister of his father. In both families, in light of the Nazi persecutions, the older generations were loathe to consider leaving their German homeland,

Here is the full Stolpersteine essay about the Salomon Mendel Landau family from the Zeit Gesichtern in Halle site. There are also stumbling stones, including for Kurt Paechter, at the Berlin apartment on Nassauische Straße, where a slightly different version of the essay appears.