 Busch did not remain in Frankfurt . Towards the end of the 1860s he alternated between Wiedensahl and Lüthorst , and Wolfenbüttel where his brother Gustav lived . The association with Johanna Kessler lasted five years , and after his return to Wiedensahl in 1872 they communicated by letter . This contact was interrupted between 1877 and 1891 , after which it was revived with the help of Kessler 's daughters . 
 Busch did not remain in Frankfurt . Towards the end of the 1860s he alternated between Wiedensahl and Lüthorst , and Wolfenbüttel where his brother Gustav lived . The association with Johanna Kessler<a href='been_done' title='1'><mark></mark></a> lasted five years , and after his return to Wiedensahl in 1872 they communicated by letter . This contact was interrupted between 1877 and 1891 , after which it was revived with the help of Kessler <a href='null_genetive' title='2'><mark>'s</mark></a>daughters . 
Busch did not remain in Frankfurt . Towards the end of the 1860s he alternated between Wiedensahl and Lüthorst , and Wolfenbüttel where his brother Gustav lived . da association with Johanna Kessler been lasted five yrs , and after his return to Wiedensahl in 1872 they communicated by letter . This txt was interrupted between 1877 and 1891 , after which it was revived with the help of Kessler  daughters .