I'm looking for the Japanese text of the following haiku, maybe written by Sasaki Sadako :
Statute of A-bomb child
she seems as if walking
after a butterfly
I found the English text here. The author may be Sasaki Sadako (see the mention "Sadoka Sasaki - a thousand of cranes") or Yasuhiko Shigemoto (but I don't see this haiku in the texts written by this author and available online).
I guess "Statute of A-bomb child" is the translation of "原爆の子の像" (seven morae).