The search results provide some information about the Free Democratic Party (FDP) in Germany, but they do not offer specific details about individual members holding positions until certain dates. The FDP has been a significant political force in Germany, often holding the balance of power in the Bundestag, and has been part of various coalition governments with both the SPD and the CDU-CSU. For instance, the FDP was in coalition with the SPD until 1982 and later joined a coalition with the CDU-CSU. More recent political shifts show that some FDP voters have moved to other parties like the CDU/CSU and AfD. However, to find specific information about individual FDP members and their tenure in positions, one might need to look into more detailed historical records or databases that track political careers, which are not covered in the provided search results. For more precise information, it would be advisable to consult official party records or parliamentary archives.