[7] She was an honorary member of the Estonian Committee and the Finnish Women's Temperance Association.
[4] She has also published juvenile and popular science books, as well as pamphlets on abstinence and education.
It contains memories of youth and active abstinence and public education work during the years of the Republic of Estonia.
In the work Võõrsil (1974) Mäelo describes the escape to Sweden and the first years of exile.
The period is also reflected in Eesti naine läbi aegade (Estonian woman through the ages).
Helmi Mäelo's most influential popular science work Eesti naine läbi aegade was published in Lund in 1957 (republished in Estonia in 1999).
On August 17, 2015, a Helmi Mäelo memorial bench was installed in Peeter Põld Square in Tartu.
[5] According to the relatives who initiated the installation of the bench, it was a symbolic reunion of student and teacher, as Mäelo studied at the school led by Peeter Põld and later portrayed the former principal in the novel Teras.