Blessed Are the Pure in Heart Uploaded by: Hoofdwerk Composer: Rowland-Raybold, Roberta Organ: Goerlitz (Görlitz), Sonnenorgel Software: Hauptwerk IV Views: 115
65 Hail to Thee, blessed Jesus Uploaded by: FredM Composer: Dupré, Marcel Organ: Caen - St. Etienne Cavaillé Coll Software: Hauptwerk V Views: 24
Blessed Are They (2014) Uploaded by: CarsonCooman Composer: Williamson, Richard A. Organ: Salisbury Cathedral Father Willis Software: Hauptwerk IV Views: 58
Improvisata Uploaded by: Agnus_Dei Composer: Tinel, Edgar Organ: Salisbury Cathedral Father Willis Software: Hauptwerk IV Views: 334
Watchman, Tell Us Of The night Uploaded by: Mktwest Composer: Martin, Gilbert Organ: Salisbury Cathedral Father Willis Software: Hauptwerk IV Views: 227
I could find no information about Carl W. Landahl (1908-1961), but I think he taught at Augsburg College in Minnesota. That would make sense, as these two Chorale Preludes were published by Augsburg Publishing House in 1963.
Both of the chorales, "O darkest woe" and "Blessed Jesus, at Thy Word" are really like "hymn elaborations," rather than true chorale preludes.
I've played them both in a manner that respects their dignity and simple beauty.