Adrian Bouter (born Adriaan Hendrik Bouter in the 1960s, Gouda, the Netherlands) has worked in various jobs, most recently as a flex worker. Began writing songs and poetry, and since about 2010 has focused on haikai. Publishes in English, Dutch, and German in some forty journals and websites. Has had work selected for three Red Moon anthologies and four of the Gurga/Metz annual anthologies and been nominated three times for Touchstone awards. In 2024 published a full-length collection, Dew of Light. Named among European Top 100 most creative haiku authors for 2013–2025. Resides near Rotterdam, the Netherlands.

Corine Timmer (born 1967, Addis Ababa, Ethiopia), Dutch visual artist, electronic music composer, author, publisher, haiku poet, and animal rights activist. She holds a Bachelor of Arts degree in business administration and a diploma in interior design. She worked in design until 2014, when her passion for writing was reawakened; in 2018 she self-published a children’s storybook. Timmer discovered haiku on Facebook in 2015 and soon joined National Haiku Writing Month (NaHaiWriMo) and other online writing groups. Since then, Timmer’s haiku and haiga have been published in top journals and anthologies, including members’ collections from the British Haiku Society and the Haiku Society of America. Her work has placed highly in international contests, notably the HSA Harold G. Henderson Awards (2017), the Mainichi Haiku Contest and the Jane Reichhold Haiga Competition (2018), the H. Gene Murtha Memorial Senryu Contest (2019), and the Robert Spiess Memorial Haiku Award (2020). She was also listed on The European Top 100 most creative haiku authors for 2018, 2019, 2020, and a haiga of hers was featured on the NHK Haiku Masters television program in 2018. Timmer has completed three anthologies of animal haiku keyed to the signs of the Chinese zodiac and is at work on the fourth. She lives near Faro, Algarve, Portugal.

J. van Tooren, pseudonym of Anna Maria Mulder-Swanenburg de Veye, born Anna Maria Swanenburg de Veye, 1900, Rangoon, Burma [now Yangon, Myanmar]; died August 14, 1991, Eindhoven, the Netherlands, translator, editor, author, and poet. She is considered the mother of Dutch haiku and was one of the founders of the Haiku Kring Nederland (Haiku Circle Netherlands).

Marjolein Rotsteeg (born [year n.a.], Rotterdam, Netherlands), music journalist, teacher, writer, and haiku poet. Her haikai, poetry, short stories, and essays have been published in periodicals, anthologies, and books in Dutch, English, and French and won honors in the Marlene Mountain contest, the BHS David Cobb awards, the HIA Haiku Contest, the Polish International Haiku Competition, and the THF Touchstone Awards for Individual Haiku. Resides in Hoenderloo, the Netherlands.

Maya Daneva (Bulgarian Cyrillic: Мая Данева; born January 6, 1968, Iambol, Bulgaria), Canadian associate professor in a Dutch university. Member of British, German, American, and Bulgarian haiku societies. Widely published internationally in print and online. Won prizes in the Yamadera, Mainichi, Ito en Oi Ocha Shinhaiku, Kusamakura, Maya Lyubenova, and HIA contests, and has appeared on the list of the European Top 100 Most Creative Haiku Authors (2020–2024). Editor of Haikupedia (2026- ). Resides in Enschede, the Netherlands.