The couple's daughter, Renate, was born during the first half of 1924. Wilhelm Zaisser was an energetic Communist Party activist, and in 1926 Elisabeth joined the party. That was also the year in which the family relocated to Berlin. In 1927 Wilhelm Zaisser was recruited by the Comintern to work on their behalf in China where according to one source he was a co-organiser of the Guangzhou Uprising. Elisabeth Zaisser relocated to Mukden (as Shenyang is identified in most western sources from that time) in 1928 in order to join her husband. They left China in 1930 and returned to the west: there was a four-month stop-over in Moscow before they settled in Berlin, where she worked for the local party in the Köpenick quarter of the city between 1930 and 1932.