Family language policy research often neglects the dynamic nature of FLP over time. Here, we interview second generation members of migrant families for their recollections as heritage language learners and their experiences setting their own FLP towards their children. We use a transdisciplinary oral history/narrative methodology to discern oscillating attitudes concerning language maintenance and acquisition as a function of changing societal and education policy. Participants are from three families originating in waves of German-speaking migrants to Australia between the 1930s and 1970s. We find that FLP only occasionally maps onto the stages of shifting ideology, highlighting individual agency of families in setting their own FLP, although sometimes remnants of bygone ideologies enter the family through marriage. Furthermore, while participants negotiated inconsistent impacts of education policies on the availability of German classes at school, to support their FLP, they utilise forms of language education outside the school system, including travel to the German-speaking 'homelands'. These case studies underline the individuality of participants' experiences of FLP, their autonomy, and success in shaping their own language policies. Overall, it is striking how much autonomy and agency individuals and families have, considering the external forces of language education policy and language ideology discourses.