Jensen later served on the committee of the British Fishermen's Association and founded a fishing heritage organisation.

[4][5] Jensen arranged a public meeting at a community hall on 2 February that was attended by more than 300 local women, who shared the committee's concerns.

[5][12] The women organised a "Fishermen's Charter" petition with more than 10,000 signatures of support, collected within 10 days, which was presented to the British government.

Our campaign has become the rallying point for discontent over safety and working conditions which has been boiling up among trawler folk for 18 months".

[15] Prime Minister Harold Wilson subsequently granted all of the requests and the campaign became known as one of the most successful civil actions of the 20th century.

She campaigned for redundancy pay for trawlermen who had previously been paid by the Ministry of Defence for reporting sightings of Russian warships.

[17][18][1] When a community theatre put on a play about the triple trawler tragedy that featured the death of her brother, Jensen acted as an adviser.