我的理解:
Mary是Jesuss的母亲, Mary的little company(小陪伴)就是Jesus, Sisters of Jesus就是崇拜Jesus的姐妹们, 象很多叫Brothers of Jesus的宗教团体. 而且这个服务团体的service连 healing 这个词都用上了, 一定是宗教性质的. 用"little company of Mary"一搜, 就能搜出一堆宗教网站. 我附了一个连接, 就是Little Company of Mary Sisters, 随便一看就是宗教团体办的了.
结论: the little company of mary 就是Jesus. 若要译成中文, How about 圣婴, or(圣)玛丽的小陪同?

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Note added at 11 hrs (2007-01-16 14:27:42 GMT)
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没写太清楚: Sisters of the Little Company of Mary= Sisters of Jesus就是崇拜Jesus的姐妹们

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Note added at 11 hrs (2007-01-16 14:38:46 GMT)
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刚在 CATHOLIC ENCYCLOPEDIA
http://www.newadvent.org/cathen/14029a.htm 上找到Sisters of the Little Company of Mary的定义(definition):Sisters of the Little Company of Mary
A congregation founded in 1877 in England to honour in a particular manner the maternal Heart of the Blessed Virgin, especially in the mystery of Calvary. The sisters make an entire consecration of themselves to her, and aim at imitating her virtues. They devote themselves to the sick and dying, which is their principal exterior work. They nurse the sick in their own homes, and also receive them in the hospitals and nursing-homes attached to their convents. They make no distinction of class, nationality or creed, and exact no charge for their services, but accept any offering which may be made them. Besides the personal attendance on the sick, they are bound to pray continually for the dying, and in the novitiate watch before the Blessed Sacrament, both by day and night, praying for the dying. When circumstances require it, the sisters may engage in various forms of mission work, especially in poor districts. The rules received final approbation from Leo XIII in 1893. The order conducts houses in: Italy (1 in Rome, 1 at Florence, 1 at Fiesole); England (3 in London, 1 in Nottingham); Ireland (1 at Limerick, 1 in Fermoy); Malta (1); Untied States (Chicago); Australia (2 at Sydney, 1 at Adelaide); South Africa (Port Elizabeth). The sisters when in the convent wear a black habit and blue veil, with a white cloak in the chapel; when nursing, the habit is of white linen, with a blue veil.
看样子她们的服务更接近于"护理中心"

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Note added at 4 days (2007-01-20 07:24:49 GMT) Post-grading
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Please disregard this one and read on.