Their tombstone has the following inscription, where I transliterate the Hebrew
p"n heh khet"resh shlomo ben heh khet"resh gerson alexander gadal beshem tov veniftar beshem tov ben pe"dalet shana caf"gimel tamuz tav resh ain alef lamed pe kuf haisha marat rivka alexander bat harav resh' yehuda leib pinner niftera bat ain"khet shana yod"gimel adar rishon tav resh" ain gimel lamed pe " kuf Tav Nun Tsadik Bet Heh ---------------------------------- Hier Ruehen unsere lieben Eltern Salomon Alexander geb. 9. Dezember 1826 gest. 18 Juli 1911 Rebecka Alexander geb. Pinner geb. 6 Marz 1835 gest. 6. Februar 1913